Analysis by David Autor indicates that from 1999 to 2007, low-skill jobs grew substantially as a share of all jobs in the United States.

大卫·奥特所作的分析报告指出，从1999年到2007年，低技能的工作在美国所有工作中所占份额显著增长。

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One analysis, by David Autor at MIT and colleagues, suggests that in manufacturing the impact of trade with China could be much bigger.

ECONOMIST: After a period on the wane, inequality is waxing again

In a forthcoming paper in the American Economic Journal: Applied Economics, David Autor of the Massachusetts Institute of Technology and Susan Houseman of the W.E.

ECONOMIST: Temporary work may dim future employment prospects

But the rolls grew quickly even when the share of 50- to 64-year-olds was steady, according to David Autor of the Massachusetts Institute of Technology and Mark Duggan of the University of Maryland.

ECONOMIST: Politicians are ignoring a big, dysfunctional programme