Do Employers Pay Efficiency Wages? Evidence from Japan*

Economists have long been interested in the seemingly cooperative nature of Japanese industrial relations. It has been hypothesized that information sharing in the wage-setting process has been used to promote efficiency. But have Japanese employers really paid efficiency wages, that is, can productivity gains be linked to pay raises? Efforts to test for efficiency wage setting face the problem of sorting out the extent to which pay influences labor productivity and vice versa. For the 1975-1997 sample period, we used an innovative statistical technique developed by Geweke to disentangle the linear association between pay and productivity growth. Efficiency wage behavior has not been the norm in Japan. Nevertheless, efficiency wage setting cannot be ruled out for some key areas of manufacturing.