And yet there are few signs that working- and middle-class Americans are living any better than they did 35 years ago. Even stranger, productivity growth does not seem to be soaring, as one would expect; in fact, it seems to be decelerating, according to research by John Fernald and Bing Wang, economists in the Economic Research Department of the Federal Reserve Bank of San Francisco.
然而没有什么迹象表明美国工人和中产阶级比35年前生活得更好。更奇怪的是，生产率增长似乎没有如你预期的那样大幅加速；事实上，根据旧金山联邦储备银行经济研究部的约翰·费纳尔多（John Fernald）和王兵（音）的研究，生产率增长出现了减速。增长前景甚至更加糟糕，因为创新活动撞上了南墙。