Median household incomes are also around $1,500 below levels reached in the late 1990s, says Robert Greenstein.

罗伯特·格林斯坦表示，家庭收入中位数也比上世纪90年代后期的水平低1500美元左右。

Greenstein believes one key to progress is for the Fed to continue to encourage growth by holding off raising interest rates.

格林斯坦认为，进步的其中一个关键是美联储继续通过推迟加息的方法来促进经济增长。