In this lecture I first give an explanation for invidious preferences based on the (evolutionary) competition for resources. Then I show that these preferences have wide ranging and empirically relevant effects on labor markets, such as: workplace skill segregation, gradual promotions, wage...

Firms launch formal programs to identify promising employee ideas and to provide support for their commercialization. This paper examines an alternative role of the firm's internal screening process in employee turnover. I argue that because the firm has better information vis-à-vis the market...