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...

In this paper, the diversity of job characteristics and wage gaps in the Spanish hotel industry due to different employer size have been studied. A labour market in which wages depend on employer size means the characteristics of the same job differs between firms. In the hotel industry the data...