This paper provides new evidence on the wage gap between informal and formal salary workers in South Africa, Brazil and Mexico. We use rich datasets that allow us to define informality in a relatively comparable fashion across countries. We compute precise wage differentials by accounting for...

This paper provides estimates of the private financial return to education based on large samples of monozygotic (MZ) and dizygotic (DZ) twins which we obtain from Danish population registers. Our estimation exploits the fact that our data is a long panel. We show that the rising inequality,...

Rapid economic growth is often expected to lead to increased returns to education and skills and thus to rising wage inequality. Ireland offers a valuable case study, with distinctive wage-setting institutions and exceptional rates of growth in output, employment and incomes in the Celtic Tiger...

In a 2005 paper Kanezawa proposed a generalisation of the classic Trivers- Willard hypothesis. It was argued that as a result taller and heavier parents should have more sons relative to daughters. Using two British cohort studies, evidence was presented which was partly consistent with the...

The Trivers Willard hypothesis that higher maternal quality is associated with a higher sex ratio is tested using a large population survey from 12 European countries. Several outcomes are studied, the proportion of children born who are male and the sex of the first three children. The...