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...

This paper studies the effect of enforcing labor regulation in an economy with a dual labor market. The analysis uses data from Brazil, a country with a large informal sector and strict labor law, where enforcement affects mainly the degree of compliance with mandated benefits (severance pay and...

We model an urban labour market in a developing economy, incorporating workers’ risk attitudes. Trade-offs between risk aversion and ability determine worker allocation across formal and informal wage employment, and voluntary and involuntary self employment. Greater risk of informal wage...