- Mar 17, 2010
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I thought this deserved a separate thread, but this is based on the other thread about wealth distribution.
We constantly have these threads arguing who controls how much of American wealth, and every time, we see figures saying, "The top X% control y% of the wealth in America!", but we rarely see any sources or studies to back claims up, and when we do, we rarely see any critical analysis of how the figures were determined, or what it really means.
So let's have a critical look at all the studies and data and make our own conclusions... maybe it will change the debate slightly. I'm not saying that the figures are right or wrong or different, but from what I have seen briefly looking at some of the studies, they at least deserve a closer look.
I'll start it off based on what I found from the other thread's studies and the sources, as well as the sources cited on the commonly-used Wiki entry on wealth in the US.
I'll cite everything I use, and cut/paste everything with as much context as possible.
**
From the other thread:
http://www.slate.com/id/2268872/
http://www.levyinstitute.org/pubs/wp_589.pdf
From this, I'd make the suggestion that the distribution of wealth among the lower quintiles is highly influenced by the fact that a large majority of those in the middle class have large debts (mainly mortgages, auto loans), which subtracted from their other assets, results in very low, if not negative, net-worth. These loans, by proxy, would necessarily increase the net-worth of upper quintile individuals, through holdings or ownership of the loan institutions.
EDIT: See posts below for correction
My point about this, is that accounting for this, we might see a little less drastic curve in the net-worth of quintiles, which may at least make it appear a little less dire. For example, if you and I both have equal net worth, and I take out a loan from you to buy a house, my net worth decreases by the amount of the loan, and yours increases by the same amount. This would create a very drastic curve between the two of us, although our real situation hasn't changed drastically.
Another way of thinking about this is that the middle/lower classes have nescessarily shifted their future wealth to the right, especially with the increase in the push for universal housing, as well as the inflation of the housing market. With the crash, unfortunately, a lot of that future shift has been lost, or will at least take a lot longer to return.
Moving on:
http://www.wider.unu.edu/stc/repec/pdfs/rp2008/dp2008-03.pdf
This study shows a picture of world wealth distribution by country.
One interesting figure you can see is that Denmark (page 6) has a somewhat greater inequality curve between the upper and lower classes, with the bottom 70% all having negative net worth. Sweden is in a similar situation, with the bottom 60% having negative net worth.
Note that the data for the different countries is compiled from various sources, thus has different sample years.
Also from that chart, we see that among the top brackets, the US and Sweden are relatively equal, while Denmark has a much higher share within the top 10%, and a much lower share among the lower 90%.
Most developed countries hover around 40-60% in the top 10%.
This is the study cited on Wikipedia relating to wealth distribution:
http://www.jchs.harvard.edu/publications/markets/w07-1.pdf
On page 12 we get a good summary of mean/median net wealth growth between 1995 and 2004.
So at least for Mean net worth growth rate, it doesn't appear as bad as some would make you think, IMO. The top growth rate average of 79% compared to lower rates of about 30% doesn't seem too unbalanced considering all factors involved.
On pages 16,17, and 18, they show us that seniors and near-seniors dominate the groups that saw their wealth increase the most, not surprisingly.
Note: This study seems to only study the period between 1995 and 2004, so while it may account for the stock market crash of 2001, it doesn't go as far as the housing/stock crash of 2008.
**
Ok, I've thrown out some stuff to discuss, let's see where it goes.
We constantly have these threads arguing who controls how much of American wealth, and every time, we see figures saying, "The top X% control y% of the wealth in America!", but we rarely see any sources or studies to back claims up, and when we do, we rarely see any critical analysis of how the figures were determined, or what it really means.
So let's have a critical look at all the studies and data and make our own conclusions... maybe it will change the debate slightly. I'm not saying that the figures are right or wrong or different, but from what I have seen briefly looking at some of the studies, they at least deserve a closer look.
I'll start it off based on what I found from the other thread's studies and the sources, as well as the sources cited on the commonly-used Wiki entry on wealth in the US.
I'll cite everything I use, and cut/paste everything with as much context as possible.
**
From the other thread:
http://www.slate.com/id/2268872/
From the study cited:The richest 1 percent account for 35 percent of the nation's net worth; subtract housing, and their share rises to 43 percent. The richest 20 percent (or "top quintile") account for 85 percent; subtract housing and their share rises to 93 percent.
http://www.levyinstitute.org/pubs/wp_589.pdf
So from this, first of all, we can define what we are talking about when we say wealth distribution. Real wealth is determined by taking all of your marketable assets, minus all of your liabilities.The principal wealth concept used here is marketable wealth (or net worth), which is defined as the current value of all marketable or fungible assets less the current value of debts.
Net worth is thus the difference in value between total assets and total liabilities or debt.
Total assets are defined as the sum of:
(1) the gross value of owner-occupied housing;
(2) other realestate owned by the household;
(3) cash and demand deposits;
(4) time and savings deposits, certificates of deposit, and money market accounts;
(5) government bonds, corporate bonds, foreign bonds, and other financial securities;
(6) the cash surrender value of life insurance plans;
(7) the cash surrender value of pension plans, including IRAs, Keogh, and 401(k) plans;
(8) corporate stock and mutual funds;
(9) net equity in unincorporated businesses; and
(10) equity in trust funds.
Total liabilities are the sum of:
(1) mortgage debt;
(2) consumer debt, including auto
loans; and
(3) other debt.
From this, I'd make the suggestion that the distribution of wealth among the lower quintiles is highly influenced by the fact that a large majority of those in the middle class have large debts (mainly mortgages, auto loans), which subtracted from their other assets, results in very low, if not negative, net-worth. These loans, by proxy, would necessarily increase the net-worth of upper quintile individuals, through holdings or ownership of the loan institutions.
EDIT: See posts below for correction
My point about this, is that accounting for this, we might see a little less drastic curve in the net-worth of quintiles, which may at least make it appear a little less dire. For example, if you and I both have equal net worth, and I take out a loan from you to buy a house, my net worth decreases by the amount of the loan, and yours increases by the same amount. This would create a very drastic curve between the two of us, although our real situation hasn't changed drastically.
Another way of thinking about this is that the middle/lower classes have nescessarily shifted their future wealth to the right, especially with the increase in the push for universal housing, as well as the inflation of the housing market. With the crash, unfortunately, a lot of that future shift has been lost, or will at least take a lot longer to return.
Moving on:
http://www.wider.unu.edu/stc/repec/pdfs/rp2008/dp2008-03.pdf
This study shows a picture of world wealth distribution by country.
One interesting figure you can see is that Denmark (page 6) has a somewhat greater inequality curve between the upper and lower classes, with the bottom 70% all having negative net worth. Sweden is in a similar situation, with the bottom 60% having negative net worth.
Note that the data for the different countries is compiled from various sources, thus has different sample years.
Also from that chart, we see that among the top brackets, the US and Sweden are relatively equal, while Denmark has a much higher share within the top 10%, and a much lower share among the lower 90%.
Most developed countries hover around 40-60% in the top 10%.
This is the study cited on Wikipedia relating to wealth distribution:
http://www.jchs.harvard.edu/publications/markets/w07-1.pdf
So from this, I'd make the observation that a lot of these statistics, at least the popular ones, are based on extremely small sample sizes in all cases. Some other studies use some complicated weighted modifiers to supposedly compensate for this, but it still seems to me, from a non-professional point of view, that it is still going to allow for a large margin of error.The SCF data have a major limitation in terms of sample size, since each survey interviewed fewer than 5,000 households. This makes it impossible to investigate small subgroups. In this paper, the two race/ethnic groups compared are non-Hispanic whites and all minorities. Quartiles are used to examine wealth and income distribution overtime, and sometimes the top two deciles are used to highlight the imbalance in the distribution. In some
cases, the top one percent is compared with the bottom half of all households. The sample size for the top one percent is admittedly small, less than 50 cases, but both Wolff (1998) and Keister and Moller (2000) have used it in their reports, as well. All dollar figures in this paper are in 2004 constant dollars adjusting for inflation using the factors provided by SCF, and data sources are the 1995 and 2004 SCF data for public use unless otherwise stated. Descriptive statistics are
used with weights to adjust to the level of the total number of households in the nation. The SCF data do not benchmark with either the Current Population Survey or Housing Vacancy Survey of
the Census Bureau and readers should be aware of a potential discrepancy in reported statistics regarding the number of households due to this difference.
On page 12 we get a good summary of mean/median net wealth growth between 1995 and 2004.
So at least for Mean net worth growth rate, it doesn't appear as bad as some would make you think, IMO. The top growth rate average of 79% compared to lower rates of about 30% doesn't seem too unbalanced considering all factors involved.
On pages 16,17, and 18, they show us that seniors and near-seniors dominate the groups that saw their wealth increase the most, not surprisingly.
Note: This study seems to only study the period between 1995 and 2004, so while it may account for the stock market crash of 2001, it doesn't go as far as the housing/stock crash of 2008.
**
Ok, I've thrown out some stuff to discuss, let's see where it goes.
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