We investigate the extent to which deficiency at English as measured by English as Additional Language (EAL), contribute to the immigrant-native wage gap for female employees in the UK, controlling for covariates. To deal with the endogeneity of EAL and a substantial problem of self-selection...

The purpose of this study is to estimate whether sexual activity is associated with wages, and also to estimate potential interactions between individuals' characteristics, wages and sexual activity. The central hypothesis behind this research is that sexual activity, like health indicators and...

This paper analyzes wage decomposition methodology in the context of panel data sample selection embedded in a correlated random effects setting. Identification issues unique to panel data are examined for their implications for wage decompositions. As an empirical example, we apply our...

We propose a method to correct for sample selection in quantile regression models. Selection is modelled via the cumulative distribution function, or copula, of the percentile error in the outcome equation and the error in the participation decision. Copula parameters are estimated by minimizing...

In this paper we investigate when the male-female wage differential arises: Does it evolve over the early career or does it exist right from entry into first employment onwards? For the analysis we use new administrative longitudinal data and focus on the early careers of skilled workers in...