布林德和沃森认为五个因素 — — 石油冲击、生产率增长、防务支出、外国经济增长和消费者信心 — — 加起来解释了增长差距的56 % 。
Blinder and Watson suggest that five factors – oil shocks, productivity growth, defense spending, foreign economic growth, and consumer confidence – may together explain 56% of the growth gap.