This paper documents the key stylised facts underlying the evolution of labour supply at the extensive and intensive margins in the last forty years in three countries: United-States, United-Kingdom and France. We develop a statistical decomposition that provides bounds on changes at the...

We study the earnings responses to three large increases in employer Social Security contributions (SSCs) in France. We find evidence of full pass-through to workers in the case of a strong and salient relationship between contributions and expected benefits. By contrast, we find limited...

Causal effects of a policy change on hazard rates of a duration outcome variable are not identified from a comparison of spells before and after the policy change, if there is unobserved heterogeneity in the effects and no model structure is imposed. We develop a discontinuity approach that...

Over the 1967-2015 period, net wage inequality has decreased in France by 25%, in contrast to the significant increase experienced by most developed countries. Less well known is the fact that labor cost inequality has actually increased by 8% over the same period. We show that, (a) standard...