This paper performs a meta-analysis to investigate how changes over time, model specifications, differences in data sets, and variable definitions could contribute to the differences in estimates of returns to education in China. The results show that approximately 10 percent of the variation...

We compare the characteristics and regression coefficients between the participants in a field experiment in China and the survey population from which they were recruited. The experimental participants were more educated, younger, more likely to be male, more risk-loving and work fewer hours...