Evidently, “something in the water,” other than education, makes people much more productive in some places than in others. A successful growth strategy needs to figure out what this is.
一个国家的收入是每位工人的产量总和。增加收入需要工人生产率的提高。显然，“除教育以外的某些隐形因素”让某些地方的工人效率比其他地方更高。成功的发展战略需要弄清楚这究竟是什么。