Are Successive Generations Getting Wealthier, and If So, Why? Evidence from the 1990s
研究了1990年代美国财富积累的显著增长，发现股票市场资本利得和养老金计划参与扩大是主要推动力，对关注代际财富不平等的研究者有用。
Getting Wealthier, and If So, Why? Evidence from the 1990s THE 1990S WERE a remarkable decade for saving and wealth accumulation. After averaging 3.4 times GDP between 1950 and 1990, aggregate net worth rose from 3.5 times GDP in 1990 to 4.2 times GDP in 2000, its highest level since at least 1950. In nominal dollar terms, net worth rose from $20 trillion in 1990 to $42 trillion in 2000. Much of the increase in wealth was fueled by skyrocketing capital gains in the stock market, which helped boost the aggregate market value of equities from $3 trillion in 1990 to $15 trillion in 2000. The decade also saw widespread diffusion of stock ownership (directly and indirectly through mutual funds) and substantial increases in participation in and contributions to defined-contribution pension plans, typically 401(k)s. At the same time, however, the measured 155