读者写信提问 这个令人困惑的段落 from David Leonhardt's profile of Larry 萨默斯 在里面 Times Magazine:
萨默斯’s favorite statistic these days is that, since 1979, the share of pretax income going to the top 1 percent of American households has risen by 7 percentage points, to 16 percent. Over the same span, the share of income going to the bottom 80 percent has fallen by 7 percentage points. It’s as if every household in that bottom 80 percent is writing a check for $7,000 every year and sending it to the top 1 percent.
It sounds like Leonhardt is mistakenly assuming that a change of seven percentage points in share of national income translates directly to $7,000 per household. I don't think that's what he means, though the passage is so opaque it's hard to be sure. After some digging, I found that 萨默斯 提到 今年参议院证词中的这些数字。他的证词包括一张表，该表表明，由于占国民收入的份额变化了7个百分点，2004年底部80％的“净损失”为6,640亿美元。如果将该数字除以美国最底层80％（约9000万）的家庭数，您将获得大约7,000美元。我将通过电子邮件发送给Leonhardt，以查看是否正确。