委员会观察一系列指标包括就业率、工业生产指数、实际收入和批发零售数据，以此来确定商业活动的数量。

This committee determines the amount of business activity in the economy by looking at things like employment, industrial production, real income and wholesale-retail sales.

youdao

据经济学家介绍，体重指数(测量体重与身高比例的指标)上升10%，男性的实际收入就会下降3.3%，女性则会下降1.8%。

Just a 10 percent increase in body mass index, a measure of weight relative to height, can cut a man's real earnings by 3.3 percent and a woman's by 1.8 percent, according to economists.

youdao

1994年间美国实际收入之预估：运用恩格尔曲线修正消费者物价指数（CPI）之偏差〉，《政治经济期刊》109期（2001年12月号）：第1288-1310页。

Costa, Dora L. "Estimating Real Income in the United States from 1888 to 1994: Correcting CPI Bias Using Engel Curves. " Journal of Political Economy 109 (December 2001): 1288-1310.

youdao