According to all evidence, the US economy’s fall from its long-run growth path has left America 7% poorer today (and into the indefinite future) than expected back in 2007. And this assumes that there is only a one-time permanent downward shock, with no additional slowdown in the rate of potential output growth.
但从过去七年的情况看，显然这一观点需要反思。根据现在的证据，美国经济从其长期增长路径的下滑让今天（以及一眼望不到边的未来）的美国人比2007年的预期水平穷了7%。并且这只是一次性的持久衰退冲击，不会造成潜在产出增长的进一步放缓。