Showing posts with label economics. Show all posts
Showing posts with label economics. Show all posts

Saturday, January 1, 2022

Pattern Language Used on Social Problems - Business Externalities

think it should be possible to address social problems using "Pattern Language" techniques. Here is a simple example that includes a serious proposal. I posted this to Facebook a couple years ago, but I might start using this framework here.

Problem:
Businesses externalize costs to save money and increase profits. That is, they force others to pay for their choices and actions. Examples of externalized costs include: government subsidized wages, pollution... These externalized costs must be born by someone, often society at large.
Solution:
Force businesses to pay externalized costs.
Initial Steps:
Choose a particular large externalized cost that is directly affecting a large number of people and force internalization.
The Carrot/Stick
The stick can be forced redistribution of profits. To protect new companies and marginal businesses, penalties should not accumulate indefinitely. Suppose the limit was one year without carryover. If the business owed $80,000 for externalities last year and this year it was $20,000, paying $20,000 this year would clear your externality debt. This requires safeguards to prevent gaming the system.
If a business is identified as having an unpaid externality debt the business would be restricted in how any profits are accumulated and distributed:
- No pay, entire package, for anyone in the company (e.g. the CEO) could more than 25 times the median (not mean) wage for the company. Any amount over 25x would be taxed at 100%. The number 25 is not arbitrary. Over time, investments can be counted on to return at least 4% per year after inflation. Suppose a CEO invested an amount 25 times the median wage for their business. They could withdraw the median wage from their investment every year, forever, without touching the principle.
- No investor returns until the externality is paid. This means no dividends, no stock buybacks, no acquisitions of other businesses, no investments unrelated to the current business. Profits would have to be distributed inside the company (buying new equipment, hiring new people, increasing worker pay...).
- No accumulation of cash more than some amount calculated from the debt. If you have tons of cash, you should pay your debt.
Business can continue forcing costs on others but they are limited in how they can distribute profits. This is not ideal but it is much better than the current situation.
Initial Externality Proposal:
Let workers keep what they have earned.
Wages are often subsidized by government. Government provides a safety net in the form of SNAP, medicaid, AFDC, WIC, TANF... Effectively, when businesses do not pay a living wage government steps in to make up the difference. That is, businesses externalize the cost of wages by having government tax everyone to make up the difference.
The profits of a company come from a number of sources (workers, capital investment...), but rank and file workers are a big source. If the wage at a company cannot support life, then the company is too poor to pay the CEO or investors large amounts.
Each company can receive an externality bill for their portion of safety net programs affecting their workers. For example, If a 10 hour a week worker receives $400/month in SNAP (food stamps), the company is responsible for roughly 1/4 of that amount because they work 1/4 time. That is an externality bill of around $100/month.
Attacking subsidized pay encourages higher wages and reduces the amount government has to spend on the social safety net.

Wednesday, July 5, 2017

Climate Change: How Do We Know and Why Do We Care


Occasionally on social media when someone posts in opposition to the notion of human caused climate change I respond. No one's mind is ever changed. I contend that, at this point, if you doubt human caused climate change you are either woefully ignorant or have a world view that simply cannot admit the possibility. You will not change your mind because you cannot change your mind.

When I was a kid I read Isaac Asimov's "The Universe" and it fascinated me because he not only gave information about what scientists think about the structure of the universe, but also gave some notion of the evidence that led us to believe these things. I'm no Asimov, but I thought I might go through some of the ways that scientists have used to peer into the climate past and to project the future. Many of the papers that discuss these things are behind paywalls, so I'm going to rely on more public links. Click on the links only if you want more information. The sources I have used tend to provide references that you can explore for even more information.

In all of this: observations are limited, observations often include only a few locations on a very large planet, there are uncertainties in measurements, over long time spans continents drift ... Despite this, there are enough measurements using a variety of techniques and theoretical underpinnings so that the general picture is quite clear and compelling.

First there are the "How do we know" questions. The "how" of what we know of climate depends on the time frame.

Recent Times (hundreds of years)


For recent times we have direct measurements of weather. This includes temperature (air and sea) and precipitation. There are also direct measurements of longer term indicators like sea level (though sea level is an inference based on statistical averages of a large number of measurements). Vegetation records and blooming information also give information. We also have counts of the number of hurricanes...

Even simple measurements like temperature have complexities. Each temperature record is taken at a single time and place using a particular technique. Over time the surroundings change as do the methods of recording the change. A measurement may have been  taken in an open field in 1903 using a mercury thermometer. The same location today may be in the middle of an urban area with the temperature taken by a thermocouple.

The longest temperature record goes back to 1659 in Central England. It shows temperature for only about 400 years and only in a single area. Sea surface temperatures have been taken since the time of the US revolutionary war. Early ocean temperatures were measured by putting a thermometer in a bucket of water drawn from the ocean. Starting in the 1960s, temperatures were automatically recorded at the intake ports of large ships. More recently, buoys have been deployed to measure temperatures, but they differ in design and sensing methods.

The scarcity of data and differing techniques mean that adjustments and inferences have to be made to convert these individual observations into a coherent and meaningful world wide data set. For example, canvas buckets cool ocean water, insulated buckets less so. Measurements near a ship engine room tend to have warmer results. Luckily, when people publish data sets, they also publish the adjustments so that other people can check the assumptions, apply different adjustments, and check to see what the results are.

Individual observations indicate "weather" (more immediate) at a single location, but we are interested in climate (longer term) over the planet. To bridge the gap, scientists have created models and simulations. Modeling complex phenomena is difficult and tricky, but models can be checked against current and know past conditions to see how well they do. To cut to the chase, the models have gotten pretty good at simulation and predictions over time spans of decades. There are many large scale computer models for the climate (in the 10s, not the 100s or 1000s). This computer modeling work has been an ongoing effort for at least four decades. During this time period several things have occurred to increase the accuracy of the modeling. First, the computers of today are literally one million times faster and can handle a million times more data. That means simulations that used to take 11 days to run can now be run in one second. A year's simulation in the 1970s can be run in half an hour. Second, techniques of modeling have improved (smaller voxels at temperature boundaries, incorporation of aerosols from volcanos into the models, better ocean heat modeling...). Third, we are measuring a lot more by deploying more weather stations, ocean buoys, weather balloons....

http://www.ocean-sci.net/12/925/2016/
https://www.technologyreview.com/s/543546/why-climate-models-arent-better/
https://phys.org/news/2017-07-framework-accounts-conflicting-global-temperature.html

By comparing different indicators over time we can see if the measurement records tell a coherent story. If they don't, it indicates something wrong with the measurements or our understanding of the climate. Over the years, we have been able to create a theoretical understanding that pretty well corresponds to the observed record.

Over the near term, the last century or so, virtually all the data points in a single direction. The earth is warming pretty quickly. We can see this in measurements of air and ocean temperature, total volume of ice, earlier spring blooming, movement of habitats and migrations of animals ... The "hockey stick" graph of temperatures is real and correct.

https://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate3325.html
https://en.wikipedia.org/wiki/Hockey_stick_graph
https://en.wikipedia.org/wiki/List_of_large-scale_temperature_reconstructions_of_the_last_2,000_years

Thousands of Years


Each year a tree forms a new ring. The size of the ring provides an indication of temperature and moisture at the location where the tree grew. In locations where dead tree trunks are available, living trees form the initial line in a chain of trees. Patterns of thin and thick at the outer edges of a dead tree may match the inner patterns on a living tree so the tree ring timeline can be extended. There are places where we have a tree ring record up to 4000 years.

If the recent pattern of rings on a particular species of tree can be matched to the weather patterns in the local historical record, we can use this correlation to start constructing plausible past weather patterns. This gives a climate measure for the location.

https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring

Coral has some of the same attributes as tree rings. Regular patterns of growth can be detected. Oxygen isotopes in coral layers can also be used as climate indicators. Uranium/Thorium ratios can be used to date the coral samples.

http://lup.lub.lu.se/luur/download?func=downloadFile&recordOId=4467119&fileOId=4467197

We can also look at changes in the landscape to see patterns of deposition that indicate climate. This includes evidence of glaciation, ancient sea levels, pollen in sediment...

Thousands to Millions of Years


All climate measurements must rely on something that is different between warm climates and cool climates. One thing we have gotten good at in the past century is measuring the relative quantities of different isotopes of elements. The chemical properties of an element largely depend on the number of protons in the atom (its atomic number), but the weight of the atom also depends on the number of neutrons. In some circumstances the weight makes a difference. Isotopes are elements with the same atomic number but different atomic weights.

One important link between temperature and isotopes comes from the water evaporation cycle. Most oxygen is O16, but some is O18, which contains two extra neutrons. Both O16 and O18 are stable. O18 requires slightly more energy to evaporate and also tends to rain out slightly sooner than O16. These processes occur today and can be measured. As the earth cools, more water is stored in glaciers and ice caps. This water evaporated then snowed onto the land. The O18 tends to rain out earlier (at lower latitudes) so the snow tends to be depleted in O18. As O16 enriched snow enters the ice caps, it leaves the ocean. That means the oceans tend to have slightly higher O18 levels when the earth is cooler. The same process is true for deuterium, a heavier isotope of hydrogen.

http://www.iceandclimate.nbi.ku.dk/research/strat_dating/annual_layer_count/ice_core_dating/
https://en.wikipedia.org/wiki/Oxygen_isotope_ratio_cycle

This gives us two complimentary ways to measure ancient temperatures. We can look at the O18/O16 ratios in ice cap cores. We can also measure ocean O18/O16 ratios in the ocean using sediments high in calcite (CaCO3). because the calcite was formed by microorganisms that got one of the calcite oxygen atoms from the sea water in which they lived, the sediment reflects the O18/O16 ratios when the organism lived.

The ice core data goes back at least 740,000 years. Sediment data can be used for a much longer time span (at least hundreds of millions of years).

Note that we have current confirmation of the theory and two different sources of data: ice and sediment. This gives the data some real credibility, particularly since the very recent data is confirmed by other means.

https://en.wikipedia.org/wiki/Oxygen_isotope_ratio_cycle

http://cdiac.esd.ornl.gov/trends/temp/domec/domec.html

https://www.researchgate.net/profile/Hugh_Jenkyns/publication/252408787_New_oxygen_isotope_evidence_for_long-term_Cretaceous_climate_change_in_the_Southern_Hemisphere/links/571b621008ae6eb94d0d6405.pdf

Why does climate change?


Looking at the deduced climate over the past millions of years we can say pretty definitely that climate has changed drastically over time. The question of why is frightfully difficult. Moreover, small changes in one thing or another can, over time, create big changes in climate. The basic principle is that the temperature of the planet depends on its internal heat, the amount of energy entering the system (mostly from the sun) and the amount of heat leaving the planet (mostly reflected light). The earth's atmosphere acts as a blanket, keeping the earth warmer than it would be without the atmosphere.

The sun has day to day differences in output, 11 year cycles of sunspots and a long term trend (hundreds of millions of years) of increasing energy output. The earth's orbit changes as does its axis of tilt. Volcanos put large amounts of reflective particles into the atmosphere, reflecting more of the sun's energy into space. Snow and clouds reflect more light than land or ocean. Clouds block heat. In fact, water vapor and clouds are the most powerful heat trapping substances for the earth, accounting for about three quarters of all heat trapping.

https://www.giss.nasa.gov/research/briefs/schmidt_05/

The oceans have a huge thermal mass and there is large scale heat transport through the oceans and between the ocean and the air. Ocean currents carry much of this heat and transport depends on the positions of the landmass. Over eons continental drift can affect climate. The ocean circulation also depends on salt concentrations and large amounts of fresh water melting may interrupt planet wide ocean circulation. If planet wide ocean heat circulation is interrupted, there may be larger temperature differences between lower and higher latitudes. This may cause more snow to persist at higher latitudes and increase the reflectivity of the planet as a whole.

Scientists have been trying to tease the affects apart. The further back in time you go, the more difficult it becomes and the more speculative the conclusions.

Carbon Dioxide


This is the measure that has become controversial for political and monetary reasons. Despite the perceived controversy, we know a lot about the basic heat processes of the earth and there is no real controversy among the scientists who actually study climate. The physical response of CO2 to light is well known and can be easily measured. The effect of CO2 is to take infrared heading out of the planet and reflect some portion of it back in. This is not a huge effect, but part of it takes affect above the level of water vapor and provides another insulating layer for the planet.

The most immediate indicator of CO2 as a possible cause of temperature rises comes from a simple correlation over the past century.  Of course simple correlation means little to nothing, and over extremely long periods of time (hundreds of millions of years) the relationship between CO2 levels and temperature are tenuous at best. That said, in an extremely complex system it is difficult to find causes and effects. Our best hope is to look at recent conditions where we have more measurements and the ability to test hypotheses directly. For the recent past, CO2 as a driver is quite well established.

The affects of CO2 have been directly measured. On the land, direct measurements of the wavelengths captured by CO2 have been measured and found to be increasing in conjunction with the increasing concentrations of CO2 in the atmosphere. The corresponding measurements from space show the opposite affect. As CO2 increases, the amount of light radiated by the planet in the range that CO2 absorbs goes down. That is, we have directly measured the greenhouse imbalance caused by increasing CO2.

https://www.skepticalscience.com/co2-temperature-correlation-intermediate.htm

http://newscenter.lbl.gov/2015/02/25/co2-greenhouse-effect-increase/

https://www.eumetsat.int/cs/idcplg?IdcService=GET_FILE&dDocName=pdf_conf_p50_s9_01_harries_v&allowInterrupt=1&noSaveAs=1&RevisionSelectionMethod=LatestReleasedhttp://science.sciencemag.org/content/289/5477/270


https://www.nature.com/articles/srep21691

Theoretical attempts to assign quantitative amounts to different drivers of temperature are rapidly maturing. These point to the same conclusion, in the current situation CO2 is the main driver of increasing global temperature.

https://www.ipcc.ch/publications_and_data/ar4/wg1/en/spmsspm-human-and.html

Why do We Care?


This section is a little different. Even if the climate is changing, why should we care? After all, climate has changed drastically in the past and life on earth has survived. Even faced with mass extinctions, life has recovered. Devastating changes in climate have set the stage for new types of life to thrive and become dominant.

The earth and life on earth will survive climate change. Technological human society may not. In any number of areas, we are currently engaged in unsustainable practices. As Herbert Stein pointed out "If something cannot go on forever, it will stop." Our human life spans are relatively short and it is easy perceive the world we live in now as not much different than the world we were born in. Over spans of centuries it is easy to see the drastic changes.

Because the world is large and has been around a long time, we can unsustainably use some resources for a very long time. We probably have centuries of fossil fuels left. A few centuries is a very short time when we consider the millions of years it took to accumulate these reserves, but for humans it means we don't have to worry about having enough fossil fuels for many generations of human life.

When agriculture emerged there were probably fewer than twenty million people on earth. We hit the one billion mark around 1800. It took 123 years to get to two billion. Currently we are adding a billion each couple decades. This population increase requires a concomitant increase in resource use. When the European settlers first reached North America cod were so numerous that it was joked you could walk across the ocean on the backs of cod. In 1992 the cod fishery collapsed and it was estimated that it's biomass was one percent of its earlier levels.

When European settlers got to the U.S. Pacific Northwest the size and expanse of the forests were breathtaking. It seemed a resource that could not be exhausted. The forest is still vast, but satellite images show the incredible level of human exploitation.

There is good reason to say that we have entered a new geologic era, the anthropocene, where the dominant force shaping the planet is humans. Humans now move more earth than natural geologic processes. All of the worlds great aquifers are being emptied for agriculture. Many of them will cease to be productive within a couple of generations. Biologists tell us we are on the brink of a sixth great extinction of species. That is, an event on the scale of the extinction of the dinosaurs. This time it is being caused by human intervention in the environment.

Humans are an extremely adaptable species, but we rely on the web of life around us as well as incredibly complex and fragile systems of technology and trade. Rapid changes in either ecology or collapse of technological webs may exceed our ability to respond while maintaining our technological society. We are already seeing large scale human misery, but many people refuse to acknowledge there is even a problem. We are headed toward a world wide failure of systems that is unprecedented in human existence.

For me, the terrible part is that, collectively, we understand what is happening and if we take action we can enter a golden age of human existence and restored ecological health. We know many of the problems and we know some of the solutions. For example, E.O. Wilson has made the excellent suggestion that we set aside roughly half the earth as a preserve outside of human intervention. The preserve must be connected and contain many of the most biologically productive areas. This seems like a large and undoable task but, surprisingly, his analysis shows that it is not. The simple act of making contraception readily available to everyone (with no coercion) is probably sufficient to keep human population in check. Movement away from burning carbon is not only do-able it is probably inevitable for cost reasons, yet the fossil fuel industries fight tooth and nail to keep the burning going. World wide, democracy and concern for the average citizen is diminishing while power is being concentrated in the hands of people and institutions whose main concern is preserving and expanding their wealth and control.


https://www.amazon.com/Half-Earth-Our-Planets-Fight-Life/dp/1631492527/ref=sr_1_1?ie=UTF8&qid=1499277232&sr=8-1&keywords=half+earth+e.o.+wilson

http://nymag.com/daily/intelligencer/2017/07/climate-change-earth-too-hot-for-humans.html

https://www.youtube.com/watch?v=Kxryv2XrnqM

https://qz.com/871907/2016-was-the-year-solar-panels-finally-became-cheaper-than-fossil-fuels-just-wait-for-2017/

http://www.npr.org/sections/thetwo-way/2017/07/05/535596277/all-new-volvo-models-will-be-electric-or-hybrid-starting-in-2019

https://www.equalitytrust.org.uk/about-inequality/impacts


Friday, September 12, 2014

Economists Are So Cute (but so are badgers )

Economists would be so cute in their naiveté if they weren't so destructive. The other day I was reading an article (oddly, on umpires and the strike zone) and I ran across this quote "As economist Edward Lazear has shown, organizations become more productive when a job well done is rewarded with extra money and dumb mistakes are punished." The referenced article is "Incentive Contracts" http://www.nber.org/papers/w1917. The paper is from 1986. Normally I would not bother with something so old, but it did get a reference from the recent article.

Actually, Lazear does not show much of anything, but he does survey various incentive schemes. There are a variety of equations, including a partial differential equation based on nonsense, that are not used for anything other than to give the article a patina of respectability.

Here is my summary. Workers are lazy and in order to get them to do anything we have to provide proper incentives. The goal of the incentives is to increase worker effort. We can base incentives on effort or on productivity. Oftentimes it is difficult to get information on effort and productivity, so we may have to adjust labor contracts for the best available information. Oh, by the way, we also have to think about quality.

The general notion of incentive is quickly replaced by money and the article only discusses wages. The reduction of "incentive" to "money" is a common simplification in economics. Money has the nice quality that it is easily counted and fits nicely in equations. Most people work to support themselves and their family, but over two thirds of workers also work to "Feel useful/productive". http://www.pewsocialtrends.org/2009/09/03/iii-attitudes-toward-work/

The main payment schemes discussed are for sharecroppers, piece rate workers, and hourly wage workers. There is also mention of the value of pitting workers against each other so the most productive workers are disproportionally rewarded.

It is demonstrably true that compensation and incentives are important in the work place. The notions in the article are worth thinking about, but not within the framework presented. The intellectual framework for the pretended quantitative notions in the article is based on demonstrably false premises. The article include such gems as:
"Incentive contracts arise because individual (sic) love leisure. In order to
induce them to forgo some leisure, or put alternatively, to put forth efort,
some form of compensation must be ofered (sic)" 
This statement is true only when the work or the workplace involved is dehumanizing. Habitat for Humanity and other non-profit groups that rely on volunteers are simple counterexamples. Perhaps we should forgive the academic who thinks about work in terms of factory piece work and sharecroppers for simplifying the human condition to a form of slavery where monetary carrots and sticks are the only way to motivate.

Another quote gives the rosy view that the workers inevitably get the rewards of increased  output.
"Thus, (2) merely says that output, Q, must be paid entirely to the worker otherwise another firm could steal the worker away by paying more." 
Beware of arguments based on this type of logical sounding statement that bears no resemblance to reality. Simple evidence is the stagnation of wages over the past couple decades despite large increases in productivity. I did a couple blog posts on productivity. The most relevant one for this context is http://colin-quodlibet.blogspot.com/2010/09/if-we-are-to-believe-productivity.html.

The sad thing is that employers often believe this nonsense and instead of providing a more pleasant and humane workplace, they turn it into an unpleasant, metrics driven, competitive hell-hole.


Saturday, August 30, 2014

Conspiracies Without Cabals

Todays topic is human organization and the analysis of power. In particular, how we can have actions that look concerted, but which do not necessarily require collaboration between individual actors. That is we have things that may appear to be conspiracies, but without any organizing cabal of plotters.

We analyze situations at a level that is practical and with the tools that produce results. We cannot analyze complex physical phenomena in terms of wave functions because the mathematics are intractable. At the level of atoms and molecules we look at electron shells and bonding strength. At the level of materials we talk about stress and strain...

An analogous situation occurs when talking about human behavior. We have to decide which types of analysis are most productive for describing particular aspects of human society. Sometimes the appropriate level is examining individuals, their motivations and actions. At other times it may be more productive to look at larger scale organizations.

In the animal world, an example is a flock of geese. The flock travels long distances without a leader and without conclaves. At any given instant, the goose who is most certain about the proper direction influences the flock to move in that direction. No single goose knows the route, but at any instant one or another goose has a pretty good idea. The flock finds its way where the individuals might not. For analyzing travel, the flock is the correct unit.

We can view the political system as a means to resolve contention between individuals who have differing notions of man and society. Some people value loyalty and the preservation of known successful structures. Other people value fairness and adaptation to a changing world.

At a level up, we can view the US political system as a competition between two major groups, the political parties. The names and values of the parties change over time, but the structure of the US electoral system seems to ensure that there are only two parties (with the occasional splinter party). For analysis, we can look at the party itself, not the people in the party. That is, look at the machine. The parties have evolved over time, but for the US system, the important qualities seem to be: that there are two major parties, that the populace is partitioned into people who largely support one or the other, and that real consequences - power, money, and favor - flow to the inner circle of the party in power. At this level, the modern targeted marketing favored by both parties make sense. Elections are held. A party only gets power if its representatives get the votes in their district. Separating the electorate into very fine segments and appealing to a single issue that is important to a particular individual will sway votes and get the party into power. For the party, being in power is more important than any particular issue or group. The individual parties have expressed beliefs, the party platform. The platform is not any kind of coherent philosophy or reality tested approach. It is merely a collection of issues the core constituency cares about and that can be used to polarize the population and get votes. The party in power uses the apparatus of government to reward those who keep it in power. The favors generally flow to large contributors, often organizations not individuals. The base currency of reward is access. The result of access is most commonly legislation that favors financial interests (a group level result), but it can be personal (e.g. ambassadorships or other government jobs).

In this analysis the characteristics of the groups (parties, lobbying groups ...) rather than individuals is important. To my mind, this fits the facts pretty well. At an individual level, any participant may be internally persuaded that they are working toward future personal rewards, but sometimes the odds don't seem very good. During the presidential primaries of 2008 Andrew Young, an aid to candidate John Edwards, tried to protect the candidate by claiming to be the father of Edwards' illegitimate child. The notion that this lie would somehow advance Young's future personal prospects seems delusional. It looks more like a subsumption of personal interests to the aims of the campaign (the group).

Analysis of group behavior is difficult because groups are constantly appearing and disappearing and they form and break alliances. For example, there is a firearms industry that sells weapons to individuals. At one level we can examine each company as an organization promoting its own aims and competing with other firearm manufacturers. In the political sphere they have banded together and sponsor the National Rifle Association (NRA). The NRA is beholden to the manufacturers for much of its funding, but it also has a large number of individual contributors. The demands of the rank and file may move the organization away from the aims of the manufacturers. The NRA also gets direction from the specific individuals who lead the organization. The leaders of the organization have some autonomy, but they must operate within a range that is acceptable to the funding constituency.

The difficulty of analysis is increased by the natural human tendency to anthropomorphize the world around us. Every day on the news there is a story talking about the stock market rising or falling, and the reasons behind the movement. The "reasons" are invariably nonsense based on the feelings of "Investors". "Investors" or "The Market" is everyone who bought and sold stock that day. This is anthropomorphized into a thinking, feeling uber-being. On the news you will hear comments like "Investors were frightened by the newly released jobs figures, causing the market to go down". These comments reflect the personal feelings of news commentator and are not based on any rigorous polling of people making trades. If we did poll, we would undoubtedly find a huge range of reasons for buying and selling (the fund needed cash, rebalancing a portfolio away from stocks ...). Even rigorous polling would give us no sensible reason because most trades are not made by humans. Most trades are made algorithmically by computer programs so complex that no individual can, without extreme effort, determine why any particular trade was made. In the "flash crash" of May 2006 the stock market lost, then regained, 10% of its value in less than hour. After five months of analysis the SEC released a report trying to explain why the market fell on that particular day. The answer had nothing to do with the magical "Investors" or "The Market". The SEC explanation included a lot interaction between algorithmic trades (including high frequency traders). Almost a decade later, the reasons are still debated. If you hear a discussion about the stock market that includes human motivations for movement, it is almost certainly fantasy, often in service to the biases and aims of the organization that pays the commentator. That does not mean the commentator is deliberately lying. They are reflecting the views of those in their circle of "experts". Those experts in turn are employed by an organization with an organizational world view tuned to support the aims of the organization.

Analysis at the group level is not hopeless though. There are common strands that allow us to discover some rules and explain actions. Unfortunately, as in many complex systems, often we can only explain in hindsight. It is only in hindsight that we can see how the various forces actually played out. In hindsight, things that were uncertain when they unfolded appear to be more inevitable. This feeling of inevitability can, in turn, lead to the notion that there was deliberate intent by some small set of individual actors (the cabal). All of us have the intent trying to shape the future, but our individual intent is usually tempered by our position within society, which shapes what we think and believe, and by the organizations through which we act.

Partly because of our stated value of respecting individuals, US society is structured to support organizations rather than individuals . In the political sphere, we do not vote for a party, we vote for an individual in a winner takes all system. To get the resources necessary to win an election, individuals almost always have to join a party. The party has a ready place on the ballot for its candidates, the party has a pool of money and a network of people who can be mobilized to work for the candidate. To get this support, the individual must align him/herself with the aims of the party.

In national office, officials "represent" millions of people. They use "public opinion" to help shape their message (but perhaps not their votes). Public opinion can be gauged by polling, and by analyzing comments and requests from constituents. If you have ever written to a national elected official you can see how your feedback is handled. The "personalized" response from the official is a set of canned paragraphs on topics you mentioned. It is clear from this response, that you letter has been analyzed at the level of "concerned about issue X" or, at the most specific, "supports position Y". Based on that, the paragraphs are chosen. These days, the analysis of your letter and the response may be automatically generated without human intervention. I have asked my elected officials to let me talk to someone about this process, and been ignored. The input to the official is presumably equally coarse, basically a count in a spreadsheet that indicates how many constituent wrote in "support of position Y". That is, the responses are aggregated in a very simplistic way. In such a world, organizations have oversized influence because they can mobilize people to affect the count in the spreadsheet of public opinion.

This makes political life a competition of organizations. Powerful individuals can increase their power by creating "grass roots" organizations capable of generating pressure on elected officials by changing the counts in the spreadsheets. Thirty second ads are used to mobilize additional letters and calls. The smartest powerful people go one step further by controlling media to affect the way issues are framed. But, whenever an organization is created, even the most powerful individuals cannot force the organization to completely reflect personal beliefs. Inevitably, other individuals in the organization influence the direction as well.

When we see the results of this process, we may assume there is a conspiracy of individuals (the Trilateral commission, Davos participants ...). It is demonstrably true that actual public opinion has no effect on the legislative process in the US. But this does not mean there is a conspiracy with secret meetings, it is the result of the wars between competing, powerful, moneyed organizations. These organizations form alliances and work together when it is convenient. As alliances are created, individuals will meet, but I believe an appropriate level of analysis is the organization. Individuals create and manipulate organizations for personal gain. I contend individuals strongly influence organizations, but only occasionally control the outcome of the balance between organizations. Individuals generally ride the larger organization trends for individual advantage.

Friday, September 30, 2011

If We Aren't Careful, We May End Up Where We Are Heading.

It is easy to predict man made catastrophes. Sometimes they even happen. Here are some intractable problems/trends that are likely to make the next hundred years "difficult". If we do not find some way, pretty quickly (fifty to one hundred years), to change course I think we could be fairly described as a failed species. That is, things will look much more like "Blade Runner" or "The Mote in God's Eye" than "Ecotopia".
This post assumes an unstated desired future. If your view of a desirable world differs significantly from mine, you may not find any problems here.
The good news is that we can relatively easily make things much much better. The bad news is that, as a species, we seem incapable of making good long term choices. If change occurs it will likely occur on the back of poverty, war, famine, and plague. If change does not occur, we are condemning our descendants to an impoverished, less habitable planet.

Social Trends - Concentration of Wealth

It has always been true in settled societies that wealth is concentrated. As productivity increases in industrialized societies, it takes less and less labor to make the same amount of goods. Either we constantly increase the amount of goods we desire and require (endless growth) or more and more people become "redundant" as they say in England. That is, there is no need for their labor.
In the nineteenth and twentieth centuries there was a serious countervailing social movement to redistribute wealth to make societies more equitable. Tides seemed to have turned and, particularly in the United States, the scales have tilted toward unfettered wealth and, along with it, increasing manipulation of both media and elections to serve the plutocracy.
I am not suggesting a trilateral commission type conspiracy. Instead, individuals and groups with plenty of money are doing their best to publicize their point of view and make it the basis of discourse. There has been about a century of systematic work to improve marketing. In the political arena the admonition that government should be more like business has been taken to heart in the propaganda department. Political messages use the tools of marketing (focus groups, test markets ...) to find the most immediately effective messages.
There have been some genuine innovations in the exercise of power though. For example, it is no longer necessary to buy politicians. It is much easier to find someone who already holds your point of view and work for their election. An extreme example is Caperton v. A.T. Massey Coal Co..
Sometimes there are social policies that reinforce the concentration of wealth as an unintended consequence. For example, higher education is increasing in cost and is commonly funded with loans. Forbes reports that two thirds of all students graduating from four year colleges and universities carry loans with an average debt of $23,000. This is a doubling from 1996. Instead of leaving the University with knowledge and a clean slate to start new enterprises, this generation is pretty much forced by debt to become simple employees of existing operations.
We know the end of this story. In the U.S. there is relentless propaganda campaign that insists that we have a pure meritocracy and the wealthy are the ones who feed us all. As the gap between haves and have nots continues to widen and the number of have nots increases, eventually they will simply rebel. If that happens, expect decades of chaos and class warfare with guns.

Social Trends - Fewer, Larger Entities

As technology improves it becomes possible to create larger and larger organizations. Advances in information processing have accelerated this capability.
The current tendency is writ large in the video distribution industry. When VHS tapes became the technology winner, the low entry costs for starting a video store allowed thousands or even tens of thousands of independently owned video stores to blossom. Almost as quickly there was a wave of consolidation as smaller operations were either bought or driven out of business by a regional video chains. These, in turn, were consolidated into a few national chains (Blockbuster, Showtime) which dominated the market. There are still mom and pop video stores, but after the first boom they never had appreciable impact on the market as a whole.
In many industries there are very few real players. This includes media companies where nine companies control virtually all television and Clear Channel controls 1200 radio stations. Four cell phone providers own the lion's share of the mobile phone market (280 million subscribers). There are five major oil companies. Oil companies are among the largest companies that have ever existed. Over half of all farm seed is produced by fewer than ten companies.
As a side effect, increasing institution size also works to further concentrate wealth.
We know from network theory and from study of biological systems that diverse systems which have large numbers of highly interconnected parts are more resilient and less prone to catastrophic failure than systems with fewer nodes and interconnections. When diverse systems of many nodes have some of them fail, the remainder of the system tends to work around the problem. When their are fewer, strongly connected nodes, they tend to drag each other down in the face of disaster. Note how this sounds just like the start of the 2008 financial crisis and the current Greek debt crisis.
In agriculture, the number of farms has decreased, the acreage of each farm has increased, and the vast majority of farms are a monoculture. We have centralized meat and food processing. While the system may be immediately efficient, it is also incredibly fragile and shortsighted. We impoverish the ecosystem, including the soil ecosystem. We also make our food supply dependent on a smaller variety of foods where a single virulent disease can spell disaster. Centralized processing means that millions of people can be infected or poisoned from a single point.
Despite their inherent fragility when faced with the unexpected, in the normal course of events, centralization tends to win. The only way to redress the problems is by creating an environment that rewards smallness or penalizes bigness.

Social Trends - Race to the Bottom

Globalization has allowed the entire world to become a source of labor and products. One side of this is that wealth has flowed to some desperately poor places. The other side is that it has depressed pay in many developed countries and made jobs much less secure. While money does flow toward poor areas of the world, the net effect is to lower labor costs in general. It is interesting to note that globalization involves capital and goods, not people. A factory worker in Sheboygan is competing with workers in Bangalore, but it is unlikely the factory worker can emigrate to Bangalore and take advantage of its lower cost of living.
Globalization allows producers to reduce costs. Labor is part of this, but not the whole picture. It is also possible to reduce costs by operating in locales that allow costs to be ignored or externalized. For example, it will be cheaper to produce in a country that allows wholesale pollution or deforestation because you don't have to install that expensive emission control equipment or worry about forty years down the road when the trees are all gone.
Because every locality wants the jobs, the tendency is to offer the most attractive deal possible to producers who promise jobs. Producers use this to pit localities against each other. Internationally, this rewards countries with the worst labor practices and the most lax regulations. Within the U.S., communities generally bid by offering tax breaks. The hope is that the increased wage base will make up for the breaks, but often the end result is simply to starve local government.
When the cost of production goes down, a number of things can happen. The cost of goods to the end consumer can go down. High tech items show this most clearly but it also shows up in the price of clothes at Old Navy. Second, profits for producers can increase. This has happened as well. In the current "recession" profits for U.S. manufacturers have completely recovered. Finally wages for workers can increase. In the past few decades this has not happened. Wages in the U.S. have been stagnant for almost two generations. When producers (owners) increase profits but workers do not share in the wealth, this increases the concentration of wealth.
Remarkably, public discourse on workers benefits has joined this race to the bottom. Look at the discussion over public pensions. There is a problem with pension funding. Governments have sometimes promised more than was prudent (as did GM and other major corporations). The discussion never seems to be "how can we get private retirement better", it is always "public employees are getting benefits that private employees do not, let's reduce them".

Social Trends - Rise of the Ideologues

Never underestimate the power of a simple idea or worldview even if it is completely wrong or destructive.
People will take a few general principles and assume everything can be explained by them without much regard to complicating factors. If the ideas lead to bad results, it is a failure of application, not the principle.
Among the current Ideologies that are threatening social destruction I would include (non-exhaustive list): radical violent Islam, any religion based on literal inerrancy of the bible, libertarianism, and all forms of racism.

Social Trends - Algorithms and Hubris

There is a notion in computer science called the singularity. This is the creation of smarter than human intelligence. A basic question is, will we notice it?
We already have specialized machines that perform much better than humans. Computers have bested humans in games like chess. Robots create and assemble parts much faster and more accurately than humans. In the computer gaming world, our "enemies" are dumbed down to correspond to our terribly slow human reaction time and limited ability to handle large numbers of inputs. Our planes and cars are already run by computers. Humans enter basic parameters for flight, but the plane itself makes virtually all decisions.
To increase efficiency we constantly streamline and automate business processes. The end result is an expansion in the power of algorithmic systems. In a modern corporation there are fewer and fewer levers pulled by fewer and fewer people. Take shipping as an example. A company like Fed-Ex has completely automated the routing of packages. Once your package information is entered into the system, humans do nothing but follow a machine generated instruction to pick up a box in one place and drop it at another. Airline reservations are another example. Humans do not play any role in the process. The price is determined by complex algorithms that are probably beyond the understanding of any single person. Planes are automatically booked and overbooked. Even upgrades and seat re-assignments are pretty much controlled by the algorithm. The person at the gate has almost no choices and no authority.
The system we have to create these systems is not reassuring. When a business decides to automate a process, a team of people, often outside specialists, is assembled to analyze the problem and implement a solution. When successful, the results are put into production and handed off to a separate team that is in charge of operating, maintaining, and improving the system. In theory this is a repeatable process with each group playing its specialized role. The players usually do not understand each other's roles very well. At the business level, the indicators are productivity (how many flights are booked in how much time and at how much cost) and overall profit and loss. The systems are designed to report some set of indicators so this can be tracked. The people who look at the indicators do not usually understand the underlying algorithms. The people who design and implement the system are specialists in new product creation and generally leave the scene after the process is in place. The people who maintain and improve the system generally have documentation, but they may not be aware of why particular design choices were made and the trade-offs involved.
Another way to state this is that every day we create large algorithmic systems that no single person, or even group of people, understands. As long as he systems work reasonably well or can be discarded, there is no real problem. When the systems fail or are critical but so complex they cannot be discarded, we run into trouble.
On Wall Street, most trading does not involve humans. In 2009 almost three quarters of all stock trades were automated trades based on computer algorithms. Since then this number has almost certainly increased. When you listen to commentators discuss the stock market and why it moves one way or another, it is complete nonsense. It sounds good and it always supports the commentator's overall view of the world, but it is not based in any kind of fact. On May 6, 2010 the stock market briefly crashed. It took five months to issue a report that could attempt to explain what actually happened. The basic answer is that the machines did it.
The hubris part of this trend is that there are people who think we can model and control complex systems. As an example, one of the great failures of modern economics has been the attempt to quantify risk. Do a google search for "quantification of risk economics". You will get pages of google results that are complete nonsense written by people who actually believe they are close to the holy grail of putting a number on risk. Often they create models that work well in certain circumstances - but their predictions ALWAYS fail catastrophically in the long term.
What happens when you put a couple of people with Nobel Prizes in Economics in a room with the Vice Chairman and Head of Bond Trading at Solomon Brothers. You get a well funded scheme to make money based on the finest and most capable economic models of the day. You get "Long Term Capital Management" a firm which made profits until it completely failed in 2000. The failure of a single firm, even a big one, is not particularly important. Unfortunately the firm was so highly leveraged (highly leveraged means "playing with huge sums of other peoples money") it threatened to bring down large portions of the financial system. Fixing the problem required a massive bailout supervised by the Federal Reserve. It failed because of events that they simply could not predict. That is the point. There are always events that we simply cannot predict. We do pretty well with "normal distributions", hence the reliable existence of life insurance. Unfortunately, most real world economics are not "normal".
The run-up to the 2008 collapse was a tribute to the power of simple greed, but all good cons need a convincing story. In this case, investors were reassured that the risk involved in collections of mortgages was known and quantified, and besides, we can hedge (insure) to limit losses. There was outright lying at every level of the financial transactions, but a systemic problem was that the intertwined system intended to reduce risk by spreading it, simply increased risk for everyone. Of course there were some folks who knew about the lying and worked the system to their own advantage (notably, Goldman Sachs).

Social Trends - Missing the Big Picture

Evidence based action is important to understand what works and what doesn't. When we have the evidence it seems silly to ignore it. But, it is also silly to read more into our simple experiments than is actually there.
Experimentation is difficult and expensive. This is especially true with trying to understand humans. Too often we end up understanding and exploiting a tendency. The results may be immediately satisfying but ultimately destructive.
There are many situations where short term investigation gives us a "local optimum" where people are more satisfied at this instant, but the end result is ultimately destructive to our health and well being.
The prime example of this is industrial food production. To build a more popular food product you have to understand what people want so they will buy your product. An industry with a new product must be able to produce it consistently and on a large scale. If you create a focus group or simply ask people on the street to tell you which of several food products they prefer, the winner is likely to be the the cheapest product with the highest sugar/fat/salt. As organisms that evolved in circumstances of want, we crave these things. To produce the product consistently and in large quantities you have to industrialize the production of the raw ingredients. In the case of food this is living organisms. For crops, we standardize the breeds, the methods of production, and we process the results in chemical plants to homogenize, filter, and extract. For animals, we reduce them to eating machines on a cheap controlled diet and we engineer their genetics to change what was an animal into a muscle production machine.
We get consistent products that we biologically crave, we also get obesity, diabetes, heart disease, and an odd form of malnutrition. Don't worry about the malnutrition though, because we have processed supplements to fix that.
Since the introduction of the automobile we have done exactly the same sort of short term fixes. When faced with traffic problems, typically traffic congestion, the answer is always the same. Congestion will be alleviated if we add more lanes and reduce the number of entrances into the main streets (no houses on arterials). It also helps if people stay away from the congested areas. The end result is our typical suburban city form. That is, a built environment that is reasonable if you are a car, but not very suitable for supportive human culture.
On a business level the question is usually "How can we improve our profits this quarter or this year?" It is almost never "How can we stay in this business in a sustainable way?" or "How can we make the world a better place in ten or a hundred years?" If your time horizon for profit is one or even five years and an opportunity arises to make a profit based on destruction that will not become apparent for ten or twenty years, most businesses will take the profit and screw the future, which leads to the next section.

Environmental Trends - Destruction of the Natural World

It is clear that as a species we are quite willing to destroy everything around us for short term survival or short term gain. We are willing to completely destroy the natural environment. Take as examples mountaintop removal for coal, deforestation and overfishing.
On top of this, there are unintended results of our actions. The prime example is global warming. General habitat destruction as we exploit more and more of the world is a severe problem.

Environmental Trends - Unsustainable Human Population

We have already passed a tipping point in human population. We have more people than the planet can sustainably support. Like a profligate child with a large inheritance, we can live for some time by depleting our inheritance, but in the end we will be broke. In this case of humanity, our inheritance is the natural world and all its riches which we are rapidly despoiling.
It is not clear what the carrying capacity of our planet is, particularly since this is partially related to the technology at hand. It is clear that we have exceeded the current capacity. As the human population continues to increase we will see even more rapid environmental degradation as well as more frequent human disasters (crop collapse, famine, social unrest, war for resources...).
In industrial countries population has stabilized or even decreased. This gives some hope that we can control our own numbers. For the world as a whole I think it is likely that we will simply exhaust natural resources. This will cause a very painful decline in human population based on misery.
As a contrast, think what the world would be like with our current technology if we had a third of our current population. We could live in a world of human plenty with a massively improved environment. We have passed the point in human society where increasing human labor is the best way to improve the human condition.




Tuesday, November 30, 2010

Economics - What is it Good For

I think of economics as the study of money and how it travels. I had a written conversation with one of my brothers and he explained that economists do not think of economics this way. They think of economics as the study of human choice and allocation of resources. For example, my brother wrote:

What are these non-economic spheres of which you speak?  Give me a couple of examples and I'll understand better.  To me, the economy IS society.  It's people using their resources to exchange with other people.  Taking the time to respond to you is a choice in the use of my resources.  I could have been riding my bike.  Economics studies how we make these choices.  It's as abstract as Galois theory and, IMHO, way more fun.


This is a very grand ambition, a unified theory of human choice. If this could be accomplished it would stand among the greatest human achievements.

When I speak of non-economic spheres, like religious or scholarly pursuits, there is an obvious mismatch with the economists view. If economics is about choice and resource allocation, there are no non-economic spheres. Cloistered nuns make the choice to spend their resources in meditation and prayer and scholars choose to spend their resources on acquiring and disseminating knowledge.

I took a negotiation class. The first exercise was to act out a scenario about buying/selling a car. Everyone in the class had exactly the same information about buyer, seller, and car. We paired off into buyers and sellers and negotiated. Perhaps because it was an exercise, no one walked away from the deal. At the end of the exercise each pair was satisfied with their transaction. The range of prices was huge. Some people bought a classic car that was likely to appreciate in value. Some people bought a source of spare parts, most of which would turn out to be useless. Each person brought their own sense of value to the table and negotiated the transaction based on that value.

This is the strength of the free market. Both buyers and sellers get to say what an item is worth and either complete a transaction or walk away. Each person assigns value and chooses how to allocate resources.

This is a basic notion of economics. To make it a science we have to be able to generalize, theorize, and test those theories. That "sense of value" is called a utility function. The utility function represents the value that a buyer or seller assigns to a resource at any given point in time. We can also speak about utility functions for large numbers of people. What is, for example, a fair price for an iPad where there are hundreds of millions of potential buyers. Can we establish that the collective utility function is such that 10 million buyers will pay $500 dollars but only 8 million will pay $600.

Here are a some facts about utility functions, both individual and collective.

  • They vary over time. A rotary telephone is worth much less today than it was 75 years ago.

  • They are discontinuous. When lcd televisions reached a certain price/quality point, CRT televisions suddenly lost almost all of their monetary value.

  • They are chaotic in the mathematical sense. That is, utility functions that are initially very close may, over time, diverge to be arbitrarily far apart. Two men may agree on the worth of a new Mercedes. One of them has a baby and suddenly the Mercedes is worth no more to that man than a Honda Civic.

These qualities are common in nature but are, so far, mathematically intractable. Economists generally work with simplified models assuming that utility functions are, at least locally, continuous and non-chaotic. That is, to make the mathematics simpler they ignore the basic complexity.

All scientists make simplifying assumptions in their models. The difference between economists and scientists becomes clear when the models fail. Scientists blame their models and re-examine their assumptions. Economists blame the world and try to persuade people that they should behave more like the model.

The brightest and most analytically rigorous economists have an impressive track record of failure in their predictions. Given this legacy, what does contemporary economics have to say that helps us with our lives? Is this a reasonable tool to use when looking at the world, or is it simply a case of "when you have a hammer everything looks like a nail".

Transactions are all about value, and value is mostly ontological. That is, what are we negotiating about? Is this a classic car or a bucket of bolts? To a philanthropist value might lie in the name of a building "The Jones Center for Advanced Learning". The question is not one of discovering the utility function, but of creating a story about the world. The utility function follows from the story. In creating the story, the tools of psychology are much more important than economics. This is marketing. I have almost never seen a marketer do an economic analysis. They create the story, the shape of the world, to make the object as desirable as possible to potential customers. It is the story that determines the utility function.

Unrealistic utility functions are not the only simplification made in economics. There are also the patently absurd notions that humans are rational actors (even in the limited economic sense) and that all parties have the same information about transactions.

While this discussion has mainly focused on microeconomics, macroeconomics has been equally unsuccessful in prediction and in guiding policy. Countries that defy conventional economic wisdom often end up better off than those that follow it. To see this, look at the history of the IMF and the results of following or disobeying its advice.

Given that the basic premises used in economics are faulty and that realistic mathematics are intractable, what is the use of current economic theory? Ben Bernanke explains:

Economic models are useful only in the context for which they are designed ... standard models were designed for these non-crisis periods, and they have proven quite useful in that context.


That is, economic theories and models are great except for the fact that they fail catastrophically from time to time.

Perhaps formal economics has failed us because the economists have not developed the analytical tools necessary for realistic models. Despite this, economic notions could provide us a particularly useful way of looking at the world or determining how we should behave.

I am not an economist and have not deeply studied the field. As a result my views are probably distorted. I see the field as an educated lay person.

I find viewing human relations in terms of self interested agents, resource allocation, and transactions to be largely bankrupt. It is true that we often work for our own gain, have limited resources and engage in many transactions. For most of us, these issues are not central to how we live our lives. Moreover, the notion that we are individualistic self interested agents has infected US society leading to a "greed is good" mentality. This flies in the face of what we know about our success as a species, which is dependent on cooperation and sacrificing self interest for family, friends, neighbors and nations.

Here is the bottom line. Economics as it is currently formulated has failed us in prediction, guidance and in world view. Economic models are only useful in the simplest situations. In world view, contemporary economics leads to greater inequality, poorer health and welfare for society as a whole, divisiveness between individuals and groups, and the mistaken belief that government cannot solve problems. All in all, an impressive record of complete failure.

Thursday, November 18, 2010

Fairness and US Federal Tax

I keep seeing articles about "fairness" of the federal tax system. In particular, that the wealthiest americans fund most of the government. For example, the Wall Street Journal "As it happens, the top fifth of earners currently pay 67% of all federal taxes". On the face of it, it doesn't seem fair that twenty percent of the population should pay two thirds of federal taxes. To make this even worse, depending on how you work the accounting, somewhere between ten and forty seven percent of households pay no Federal taxes at all.

This blog entry was triggered by an opinion piece written by Glenn Hubbard, a chairman of the Council of Economic Advisers under President George W. Bush. "Left, Right and Wrong on Taxes". In that piece Mr. Hubbard says

When I left my job as the deputy assistant Treasury secretary for tax policy in 1993, I left a message on my office blackboard for my successor. I wrote, “Broaden the base, lower the rates” repeatedly until I filled the entire space. I then had it covered with wax so it could not be erased. (Yes, the government charged me for my bit of vandalism. But it was worth it.)


I think all of this is nonsense. It seems to be based on the simplest possible notion of "fair" and a deep misunderstanding of wealth, taxes, and spending.

Anything to do with taxes and finance is complicated, but this note is not. I am using a very broad brush, but in data I use the numbers that argue against my point of view. For example, I use federal spending numbers from 2000 when the government spent much less than it does now. The income figures come from 2005, which gives households a higher income than in 2000. I did this because it is hard to get a consistent data set but I wanted to make sure I could not be accused of cherry picking data.

The gist of my argument is that the wealthiest must pay most of the burden because, frankly, they are the only ones that have any money. The federal government goes after them because they cannot get the money anywhere else without having people starving in the streets.

In 2000 the federal government spent about 1,789 billion (about 1.8 trillion) dollars. See: Government Spending Details, Federal Spending by the Numbers 2010, Table 1.1 — Summary of Receipts, Outlays, and Surpluses or Deficits: 1789–2009 . In 2005 there were about 110 million households . Dividing federal spending by households gives an "average" federal tax burden matching taxes to spending. In billions, this is: 1,789/.11 or $17,890/household

In 2005, twenty percent of all households had an income less than $18,500. That means for one out of five people to pay their "fair share" we would have to confiscate all their money leaving them nothing for food, shelter, heat, water... Looking at income breakdowns, the poor are disproportionately young and have less education. This group has more households headed by single women. My own experience and the fact that they tend to by younger indicates there are often children in the households. Children have no say in when or to whom they are born.

My earlier post discusses how, in virtually all societies, wealth is concentrated in the hands of a few. If you compare the wealth curve to the tax curve. you will find general agreement. Compare "But by 2005, the top 10 percent accounted for nearly 55 percent of all federal tax revenues, while the rest of the population paid about 45 percent." with the fact that the top ten percent has about 71% of the wealth.

The federal government taxes the rich for the same reasons Willie Sutton robbed banks. That is where the money is. If you look at capability to pay taxes (percent of wealth vs. percent of tax burden), the top ten percent are getting off easy. In terms of power politics, that makes sense. The wealthiest have the greatest ability to influence government policy and public opinion. As Warren Buffet famously said, "There’s class warfare, all right, but it’s my class, the rich class, that’s making war, and we’re winning."

We have income redistribution in the United States, as does every industrialized country in the world. We do this because the alternative is having malnourished children and a huge homeless population.

It would be impossible to argue in favor of the current federal tax system with its arcane rules and special deductions. Eliminating many of the current deductions would allow stated tax rates to go down and would make the stated rates closer to the actual rates. But calls to “Broaden the base, lower the rates” are another salvo in the class warfare already going on. If we look at Mr. Hubbard's specific proposals we can see where he stands.

Broaden the base lower the rates.
Reduce taxes for the wealthiest americans (softened by removing deductions).

Cut corporate taxes.
Increase income mostly for the wealthiest americans. The evidence that this spurs economic growth is sketchy at best.

Shift from income tax to a consumption tax.
This disproportionately affects those who must spend all their income.

The United States is the wealthiest nation that has ever existed. Even with our debt crisis we can afford to support those among us who are the poorest and most vulnerable, but it will require taking some wealth from those who have the most.

Monday, September 20, 2010

Wealth Distribution and The Work Week

In this post I have quite a few links. They vary in political slant and probably somewhat in numerical values, but the overall picture is largely consistent. Often I reference an article rather than the base data because I found the article itself interesting. Sometimes the general articles contain other useful links.

I read a quote a while ago - but cannot find it now. It went something like "Every successful person says they got that way by dint of hard work, intelligence and perseverance. I never met an unsuccessful person who did not blame circumstance and bad luck."

I can interpret this statement in at least three ways, all of which have some truth. One is that successful people work hard and meet adversity with intelligence and persistence while unsuccessful people blame the world around them. A second interpretation is that successful people are likely to pat themselves on the back and attribute to themselves results that may have come from simple luck. A third interpretation is that both sides are correct. Hard work, intelligence and perseverance may be necessary precursors of self earned success. While these traits may be necessary, they are not sufficient. Many people are defeated by events beyond their control.

In my last blog post I requested a 1950 lifestyle in exchange for a work week that corresponds to current productivity compared to 1950 (11 hours per week). With steady increases in productivity it is a reasonable to question why life is as hard as it is and why the work week has not gotten any shorter, and may have gotten longer. I saw an analysis (unfortunately not very good) of hunter-gatherers that estimated they spent about 40 hours a week on survival. That means that in the past 4000 years we have we made no progress on shortening the labor needed to survive. Admittedly "survival" now is much different than 4000 years ago. Life is much more comfortable, longer and, for most of us, less brutish. Still... something seems wrong.

About a century ago an economist named Wilfried Pareto noticed than many phenomena including income and wealth follow what is now called a Pareto Distribution. This is often known as the 80/20 rule and says that 20% of the population have 80% of the wealth/income... The distribution is self similar in that if you take the top 20% it will follow the same distribution. That is, 20% of the most wealthy people will have 80% of the wealth in the wealthy group.


The distribution of wealth is not exactly a Pareto Distribution but it is close, particularly at the high end of the income/wealth scales. This is true in many societies around the globe including medieval Hungary.

When something is this widespread it argues for a common mechanism. This mechanism could be the distribution of brains/work ethic/persistence or it could be something having to do with the nature of economic systems. In 2002 the Harvard Business Review published an article "Wealth Happens" . Simulations based on a few assumptions about money flow show a Pareto Distribution occurring strictly by chance. That is, a few chance events may cause one person to become wealthy while another becomes poor. In their simulations, the basic feedback mechanism was investment. If you gained enough wealth to start investing in things that provided more wealth, you headed up the wealth chain. Wealth is compounding, so the more you have the more you get.

The numbers 80%/20% are really just an example. Different societies have different percentages. Most people underestimate how skewed wealth is and overestimate social mobility (moving from poor to rich or vice versa).

Net worth is the value of everything you own minus all debt. In 2007 the median net worth of a family was $120,000. If this were a stack of $100 bills, it would be a little less than six inches tall. The 400th richest American in 2007 was Kenny Troutt of Excel Communications with a net worth of 1.3 billion. That would be a stack of $100 bills just over a mile tall. Bill Gates topped the world list that year at 59 billion, a stack of $100 bills about 45.5 miles tall.

It is worth a moment to talk about "mean" and "median". In the last paragraph I said the median net worth in 2007 was $120,000. The median is the middle number. That is, if you have 11 different numbers then 5 numbers will be less than the median and 5 numbers will be greater than the median. The "mean" is the average you get by adding up all the numbers and dividing by the total. For the numbers (1,2,3,4, 10000) the median is 3. There are two numbers (1, 2) that are less than the median and two numbers (4, 100000) that are greater than the median. The mean of these numbers is 2002 = (1 + 2 + 3 + 4 + 10000)/5. The difference between the median and the mean is an indication of how skewed a distribution is.

In the case of US family net worth in 2007, the median was $120,000. The mean was $556,380. The Pareto Distribution is quite skewed. If we confiscated all wealth and redistributed it evenly among all families, every family in the US would be around the current 80th percentile of net worth. That is, every single family would be better off than about 80% of the families today.

Before you start the revolution remember the Harvard Business Review article. It indicates that inequality would quickly reassert itself and we would be in the same position as today in relatively short order. Many people would lose almost all their money and a few people would become fabulously wealthy.

Over the past 20 years the US has become less equal in terms of wealth distribution, but the absolute wealth of each class may have increased. That is, the economic pie has gotten bigger so that even though the very wealthy have increased their percentage of the pie, the rest of us still got a little more pie than we used to.

In social mobility there is a general trend for poor families to improve their lot over several generations. In the US it takes about four generations to move from 20% of the average income to about 90% of the average income. There is more social mobility in much of the developed world than in the United States. That is, families pull themselves out of poverty significantly faster in France, Canada, and Denmark than they do in the US.

On a macroeconomic level, measurements indicate productivity and wages are somewhat linked. At and industry level, this correlation does not hold. This can be seen in agriculture. Agricultural production has increased many fold over the past century and a half, but farm wages remain among the lowest of any industry.

I have said that Pareto Distributions of wealth and income probably have some basic underlying cause. That means we will always have a lot of relatively poor people and a very very few fabulously wealthy. However the percentages can and do vary from society to society. I believe that much of the difference is a result of government policy. In a Kleptocracy, 95% of the wealth may be owned by 5% of the population. Social welfare states (most of Western Europe) tend to have less wealth inequality than we have in the US.

The difference between median and mean income in the United States indicates there is plenty of room for increasing the general welfare of people and, at the same time, shortening the work week. The average American worker works 500 hours per year more than the average German worker, yet German quality of life and social security is at least as high. The difference is social policy.

The Pareto Distribution ensures that there will always be a pool of less well off people who may be willing to work more hours or for less pay. Decisions on the length of the work week are political and are based in part on how the populace feels about wealth redistribution. In US politics this topic cannot be discussed rationally. Because structural changes to the economy are likely to further concentrate wealth (possible topic of another blog post) and lack of rational discussion, you can expect to be working even longer hours in the near future.

Thursday, September 16, 2010

Productivity and Lifestyle - Are We Being Shafted?

If we are to believe productivity statistics it should take 11 hours of work per week to have an output that is equivalent to a 40 hour work week in 1950. It should take 23 hours per week to equal 40 hours in 1975. http://groups.csail.mit.edu/mac/users/rauch/worktime/

I am writing this in my house, built in 1956. In front of the house is our single car, a ten year old Honda. Something seems wrong either with the statistics or with my life. Currently I am starting a new business, so I expect to be working a lot without much (any) monetary gain. That said, I have worked at least 40 hours per week for decades and I have never been four times as well off as the equivalent worker in 1950.

There are explanations (aside from the obvious one that I have been shafted for my entire adult life). Mostly these revolve around the difficulty of comparing time periods. On the measurement side, we have shifted from a manufacturing to a service economy. How do you compare my productivity as a software engineer (a white collar position that did not exist in 1950) with that of a mid level manager at a blender manufacturer in 1950. Within an industry we can more easily measure productivity gains, but as one industry becomes more productive, workers are laid off and shift to new industries.

On the consumption side, the goods and services we use have changed drastically. Instead of an expensive, crummy, black and white TV, I have a a big screen high definition TV that I can use to stream movies off the internet. Instead of a single phone line with expensive long distance, we have multiple cell phones and the internet. My 10 year old car is undoubtedly more efficient, comfortable and reliable than a brand new car in 1950. We have several computers in the house all of which are wirelessly connected to the internet.

Despite these difficulties, I personally believe the "we are all being shafted" theory. Honestly, my life is not that much different from life in the 1950's or the 1970s. My house was built in 1956 and has no air conditioning. The heater has changed several times, but is still a natural gas burning central system. My car, while of higher quality, is still just a car. I do not own that many appliances. Those that I do own are of higher quality and probably more reliable than anything available a couple decades ago, but their basic design and operation is essentially the same.

On the working side, I have always worked at a full time job, but these days most households have every adult member working outside the home for wages. In 1950 a primary white collar wage earner would have supported a household on 40 hours a week. Now we need two wage earners working close to 80 hours for my household. On top of that, many of the tasks that used to be someone else's job are now mine. For example, in the grocery store I used to wheel my cart up to a check out lane and someone would ring up my purchases. Now I have to ring it up myself. A business traveler in the 1950s or even the 1970s would have a travel agency - either external or internal - book travel. Now even highly paid executives book their own travel. White collar workers in 1950 or 1970 had secretaries for clerical work, now we do it all ourselves.

I would trade my current lifestyle for a 1950 lifestyle working 11 hours per week. It is true that I enjoy modern conveniences, so I am willing to double my work week to get some of that (computers and the internet). That brings me up to 22 hours per week. Heck, I'll throw in a couple hours for free and make it an even 24 hours of work a week - but that is my final offer.

Don't even get me started on the flying car that all visions of the future thought we would have by now.

Friday, April 2, 2010

Do we always want more

This was part of a facebook conversation that I thought might have more general interest. I apologize for the lack of context. There were two strands going, one on the effectiveness of economic theory. The second, and I think more interesting, topic I paraphrase as "are humans hardwired to want more and to equate more with better".

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I have no problem with the base notions that economists have come up with. They are extremely valuable. Supply/demand and the notion of marginal utility seem to explain some basic facts about humans as economic animals. The elaboration of those concepts into mathematics with the attendant simplifications is also fine by me, as long as the basic shortcomings are acknowledged. Unfortunately, certain brands of economists (pure free market capitalists) have hijacked the political discussion by making their value judgements into articles of political faith, partly on the basis of "science and mathematics".

On the basic question of more equals better in the human animal, I think the jury is out. Even if we accept more is better, what we want more of is quite malleable.

It is quite clear that virtually all human groupings larger than tribes establish social hierarchies and that social status is announced by appearance and behavior. It is also clear that in many groups, displays of wealth are associated with high social status. Wealth is often associated with a surplus of labor. In the middle ages, kings might have torch holders at a feast. This was not because the wall sconce was not invented. On the Yap islands, large carved stone discs served served as currency. The value of a stone was largely associated with the difficulty of acquiring it.

Social status is not always associated with material goods though. In academic circles status comes with papers, citations, and awards. In religious communities it can come with piety, prayer and even asceticism. These are cases where the hierarchy is disconnected from wealth. Hereditary social status is often associated with wealth, but the existence of sumptuary laws shows us that higher social classes (typically hereditary) may try to eliminate the advantage of wealth to maintain their own status.

Within the larger social hierarchy, both religious and academic social status often exist side by side with wealth or hereditary social status. That indicates that while social status is important, it need not be wealth based.

Even if we accept displays of wealth as indicators of status, what we spend our money on is almost completely arbitrary. Take fashion. The codpiece shows us that people can make anything fashionable.

To Michael's point on advertising. There are two ways that advertising can be effective. One is to channel existing notions of desirability into a particular product. For example, when I want a drink, advertising can influence my decision to get a Coke instead of a Pepsi or water. Thirst is the need, and advertising changes the choice, not the need.

The second way advertising can be effective is to create a new sense of need. That is, it changes the utility function rather than just directing it. The current market for diamonds in jewelry is an existence proof that this is possible. This should be a textbook case in marketing. Diamonds are sparkly and pretty. They have been used in jewelry for several thousand years. Through advertising, the De Beers company manufactured the diamond as the standard engagement ring. They controlled supplies and were able to create an artificial scarcity. This both increased the price and fed into the notion of giving a valuable engagement ring as a symbol. Now that synthetic diamonds are increasing in size and quality, they have added "natural" to the marketing. You must give a "natural" stone even though an electron microscope may be required to decide whether a given stone is natural.

Research shows that when you take a school class, the specifics of the subject are quickly forgotten. What is remembered are the basic concepts, the shape of the world. Advertisements are the same way. This is what allows Coke ads to be effective without mentioning any attributes of the product. What comes through, the shape of the world, is that Coke is part of good times with friends and family.

For commerce as a whole, the basic shape of the world is that things make the world better (which is often quite true) and that having the latest, most full featured, most stylish thing is fulfilling (which is often not true).

I personally believe that there has been a concerted commercial effort in the United States to base almost all social status on wealth and the conspicuous consumption of goods, many of which are designed either by manufacture or fashion to become obsolete quickly. I am not suggesting that this is a conspiracy, just that it makes economic sense for every business to increase the desirability of its products. In a world of mass media, non-economic spheres have less effective incentives and means.