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...

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...