Japan's wartime economy and employment system remained basically intact after World War II, which provided a guarantee for Japan to have a cheap and loyal manufacturing labor force before the 1960s and 1970s. At the same time, it must be praised that Japan has been adhering to the education policy since Meiji.

The sudden Korean War made Japan spend the most vulnerable period in the early post-war period. Military orders have avoided the problem of social employment (historically known as the "upsurge of special needs for war"), at least avoiding the collapse of a large number of industries and personnel before dawn.

Japan's industrial system has always been relatively complete. After the war, four chaebol (Mitsubishi, Mitsui, Sumitomo and An Tian) were retained, thus avoiding the dilemma that Japan's manufacturing industry needs to start from scratch.

At the same time of high urbanization, catch up with the industrial upgrading of the United States, successfully undertake the low-end manufacturing and labor-intensive industries in the United States, and earn processing fees (in contrast, no country in Asia had the same conditions at that time)