Productivity growth is not about working longer; it is about generating more output per unit of labor input. Any undercounting of output pales in comparison with the IT-assisted undercounting of working hours.
生产率并不是工作时间更长；而是关乎单位劳动投入产生更多产出。产出的低估与信息技术所导致的工作时长低估相比不值一提。