关键词: 产品市场势力, 劳动力市场势力, 劳动收入份额, 政策协同

Abstract: The deviation of labor remuneration from labor contribution is one of the problems to be solved in the process of promoting the construction of common prosperity in China In an imperfect competitive market，the share of labor income depends on the market strength of the enterprise Based on the data of Chinese industrial enterprises from 1998 to 2013，this paper builds a theoretical framework that includes both products and labor market powers This paper finds that product market power will make the actual output of enterprises lower than the optimal output of the market，and then act on the labor income share through the demand deviation effect of labor factors Labor market power will make the wage level of employees lower than their marginal product income，and then act on the share of labor income through wage deviation effect More importantly，when there is a correlation between products and labor market power，the product market regulation policy intended to improve the labor income share will make the labor income share tend to decline This means that policy reforms that simultaneously eliminate product and labor market powers can achieve optimal policy outcomes

Key words: product market power, labor market power, labor income share, policy coordination