This paper examines changes in after-tax income inequality among tax filers between 1991 and 2006. In particular, how changes in wages, capital income, and tax policy contribute to changes in income inequality is investigated. To examine the role of these three possible contributors to the...

Income inequality has been increasing in the United States over the past 25 years. Many argue that rising inequality is not a serious issue because income or social mobility reduces inequality and increases well-being. These observers point to studies showing considerable upward mobility. This...

Several researchers have shown that income inequality of a cohort increases as the cohort ages. The various studies examining cohort income inequality use a variety of data, measures, and methods. Is the U.S. experience documented in other studies due to potential biases due to data, measures...

Several studies have found mortality differences by income level — higher income individuals tend to live longer — and these differences have been growing over time. This differential mortality could affect measured cohort income inequality because the bottom of the income distribution will...

Two issues may have a tremendous impact on the adequacy of retirement income for today's workers: The growth of 401(k) pension plans and the possible privatization of Social Security. Workers are becoming increasingly responsible for the adequacy of their retirement income by determining how...

This study examines income dynamics during individuals' first 12 years of retirement. Two questions are asked: (1) Are the economic experiences of the elderly in the United States unique, or are they similar to those of the elderly in Germany? and (2) What is the role of Social Security in...

This study examines the link between income inequality and redistribution. Specifically, how inequality of market incomes affects (1) the size of the tax and transfer system, and (2) the redistributive effect of the tax and transfer system. Two models of government decision-making — the median...