"Firms in the same industry can differ in measured productivity by multiples of 3. Griliches (1957) suggests one explanation: the quality of inputs differs across firms. We add labor market history variables such as experience and firm and industry tenure, as well as general human capital...

"This paper develops a human capital measure in the sense of Schultz (1960) and then reevaluates the contribution of human capital to China's economic growth. The results indicate that human capital plays a much more important role in China's economic growth than available literature suggests,...

"In traditional signaling models, education provides a way for individuals to sort themselves by ability. Employers in turn use education to statistically discriminate, paying wages that reflect the average productivity of workers with the same given level of education. In this paper, we provide...