The socio-economic gradient in health remains a controversial topic in economics and other social sciences. In this paper we develop a new duration model that allows for unobserved persistent individual-specific health shocks and provides new evidence on the roles of socio-economic...

A large body of empirical research links mental health and labour market outcomes; however, there are few studies that effectively control for the two-way causality between work and health and the existence of unobserved individual characteristics that might jointly determine health and labour...

This paper offers methodological comments on a recent (November 2014) Economic Journal article. The comments consider its use of a dynamic model - the inclusion of a lagged dependent variable - and its approach to estimation. By way of critique, the authors highlight general issues regarding...