Wage Disparity and Team Performance in the Process of Industry Development: Evidence From Japan's Professional Football League

The changing effects of wage disparity on team performance during the process of industry development are examined using data sourced from the Japanese professional football league. The results show that wage disparity leads to a reduction in team performance during the developing stage but does not influence performance during the developed stage. Unobserved fixed team effects and endogeneity bias were controlled in the study.