As the Japanese economist Ryuichiro Tachi has pointed out, Japan also benefited from a high savings rate and a low capital coefficient (the ratio of capital to output) of less than 1. Though a precise comparison is difficult, there is no doubt that China’s capital coefficient is much higher, implying a larger gap between the growth rate of capital intensity (the total amount of capital needed per dollar of revenue) and that of labor productivity.
日本经济学家馆龙一郎（Ryuichiro Tachi）指出，日本还从高储蓄率和小于1的低资本系数（资本与产出的比率）中获益。尽管精确比较十分困难，但毫无疑问中国资本系数要远高于日本，这意味着更大的资本密集度（每一美元收入所需要的资本总量）和劳动生产率增长缺口。