Where America's productivity growth is coming from is clear. A relatively small part of it is coming from simple speed-up: in an economy where the amount of time it takes for the unemployed to find new jobs is close to a post-WWII record high, demands for speeding-up the pace of work will be met with a "Yes, boss!" rather than a "Take this job and shove it!"
美国劳动生产率的增长从何而来是显而易见的。其较小的部分增长是来自简单的加速：在目前的经济形势下，美国的失业人口找到新工作的间隔时间逼近二战后的历史高点。因此对于加快工作节奏的要求，雇员的态度总是"是，老板！"（"惟命是从"），而不是"我不希罕这破工作！"（"针锋相对"）