The Story Behind Income Inequality
Income inequality is the financial gap between different income brackets, to put it into Lament's terms. No matter what economic system a nation may partake in, economic or income inequality has always been a hot button issue. In recent history going back to the global economic collapse of 2008 and continuing recession through the current Obama administration, income inequality has not only become a fiery partisan battle but also a real life, day to day, issue with middle and working class Americans. The term, income inequality, is a purely statistical concept, however, meaning not just one individual distributes all the money. Income inequality comes from peoples' decisions about their savings, employment, and investment as they work through the market fluctuations and tax fluctuations as well. During the 1990s and early 2000s people experienced an expanding body of work and understanding of how income distribution worked. This great body of work can be described in three main points. Point one suggests that the distribution of pretax income in the United States today is very unequal. Studies suggest that the top 10 percent of households, with the average income of about $200,000, received approximately 42 percent of all pretax money income in the late 1990s. The top one percent, which mainstream media suggests are taking all the money, averaging $800,000 received about 15 percent of all pretax money income. A second study suggests that the path of income inequality over the twentieth century is marked by two main events such as a dramatic decrease in inequality around the outbreak of World War II and an extended increase in inequality that began in the mid-1970s and continued increase in the 1980s. Today, income inequality is roughly the same amount as it was during the roaring 1920s. And the third main study suggests that over multiple years, family income fluctuates and so the distribution of multi-year income is approximately more equal than the distribution of single-year income.
In Controversies about the Rise of American Inequality: A Survey, authors Robert J. Gordon and Ian Dew-Becker provide a comprehensive survey of seven aspects of rising inequality that are usually discussed separately: changes in labor's share of income; inequality at the bottom of the income distribution, including labor mobility; skill-biased technical change; inequality among high income groups; consumption inequality; geographical inequality; and international differences in the income distribution, particularly at the top. They conclude that changes in labor's share of income play no role in rising inequality of labor income and by one measure, labor's income share was almost the same in 2007 as it was back in 1950. However, there are gender differences in income inequality, between 1979 and 2005, for example, the income gap between women working for the median wage (the 50th percentile) and low-earning women (at the 10th percentile) grew much more than it did for men at those income levels during the same period. That suggests that the decline in the real value of the minimum wage over that time played a causal role, the authors argue. That's not surprising, in one sense, since women are, roughly speaking, twice as likely to work for the minimum wage as men are. If women were more affected by the minimum wage, men bore the brunt of the decline in unionization over the least three decades, the survey finds. One study the authors cite suggests that the fall in organized labor's share of the workforce can explain 14 percent of the rise in the variance among male wages between 1973 and 2001, but it had no apparent effect on the variance of female wages. There is little evidence on the effects of imports. And, the ambiguous literature on immigration implies a small overall impact on the wages of the average native-born American, a significant downward effect on the wages of high-school dropouts, and a potentially large impact on previous immigrants who work in occupations in which immigrants specialize. The authors introduce two new issues, disparities in the growth of price indexes and in life expectancy between the rich and the poor. "While the poor may do better when price indexes are corrected, they do much worse when their health outcomes are considered," the authors write. They cite evidence that between 1980 and 2000 the life expectancy of the bottom 10 percent of earners increased at only half the rate of the top 10 percent. "This may be the most important single source of the increase in inequality in the United States, and it combines not only unequal access to medical care services and insurance, but also to differences in personal habits and environment related to education and income," the authors conclude. The most controversial section of the survey looks at the question of why the rich have gotten so much richer. In a 2005 study, the authors found that the top 10 percent of earners saw their share of overall income rise from 27 percent in 1966 to 45 percent in 2001. But that study also documented that fully half of that increase came from the relative gains made at the very top of that spectrum - those at the 95th percentile and above. That study also distinguished between "superstars," whose incomes were market-driven, and CEOs, whose incomes were "chosen by their peers." In their new survey, the authors carve out a third group - high-income professionals, especially lawyers and investment bankers, whose pay is market-driven but who don't enjoy the benefits of "audience magnification," whereby the superstars can fill entire arenas or sell recordings to millions of people. Their point: income inequality is growing even among the top 10 percent of earners as the superstars and CEOs increase their pay faster than lawyers and investment bankers. But at least the pay of the superstars, lawyers, and investment bankers is market-driven. The pay of CEOs is not. Their review of the CEO debate places equal emphasis on the market, in showering capital gains through stock options, and an arbitrary management-power hypothesis based on numerous non-market aspects of executive pay. "CEOs, through compensation committees and inbreeding of boards of directors, have a unique ability to control their own compensation," the authors write. "Furthermore, if a director approves a higher compensation package that may subsequently lead her to receive more compensation at her own firm." They cite one study of 1,500 firms that found that the compensation earned by the top five corporate officers in 1993-5 equaled 5 percent of their firms' total profits during that period; by 2000-2, that ratio had more than doubled to 12.8 percent. The trend was caused in equal parts by arbitrary pay decisions by corporate boards and by the showering of stock options on CEOs, they conclude. Furthermore, the survey cites a study showing "ample evidence that firms work to disguise the magnitude of CEO pay," such as lifetime healthcare, below-market-rate loans, and above-market-rate loans when CEOs defer their compensation, to lessen shareholder outrage. Such research "is important because it tells shareholders what to expect and where their outrage constraint should be set," the authors write. This skewing of pay at the very top in the United States contrasts with other countries, especially Japan. There, the income share of the top 0.1 percent peaked at 9.2 percent in 1938, reached stability of close to 2.0 percent after 1947, and ended up at 1.7 percent in 1998. Initially, America also saw an initial peak (8.2 percent in 1928) fall to a low (1.9 percent in 1973). But then the income share of America's top 0.1 percent rebounded (7.3 percent in 2000). Canada and the United Kingdom mimicked the U.S. pattern, though their most recent upturns were less dramatic. France, like Japan, has seen the income share of its very top earners stay quite stable since the mid-1940s.
Since 1948, the March edition of the U.S. Census Bureau's Current Population Survey or CPS, has been collecting household income information for the previous year and even their personal details such as the household members' age, education, occupation, industry and other information that may help the CPS collect income data. Even though the CPS presents a lot of statistical information about income to the public, its great downside is the pretax money receipts excluding capital gains. The CPS also has a cap of $999,999 which exclude, obviously any income data past this income level. These problems means that the CPS estimates of inequality rid of the effects of taxes, non-money income such as government and private health insurance, and the portion of individual income that, as stated previously, exceeds the cap limit. Another source of income inequality statistics is the U.S. Treasury's Statistics of Income or SOI, which summarizes income reported on federal income tax returns. SOI information doesn't contain any personal data on taxpayers such as age, education, occupation, etc. and also cannot describe, precisely, the lower part of income distribution. The advantages of SOI data are their ability to give an accurate description of the upper part of the income distribution because SOI does not have a cap limit like CPS.
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