Learning by exporting refers to the mechanism whereby firms improve their performance (productivity) after entering … from a large internal inconsistency: they rely on an exogenous evolving productivity process. I show how recent proxy … estimators can accommodate endogenous productivity processes such as learning by exporting. I rely on my framework to discuss the …

productivity and efficiency via its impact on sorting and matching in the labor market. Some of the most recent contributions also …

diminishing returns to the number of workers. We examine the sorting of factors to sectors and the matching of factors within …

This paper develops a matching model of the labour market under wage rigidity when hiring decisions are irreversible … increase in the productivity and/or the supply of skilled relative to unskilled workers. These effects are stronger when hiring …

Reduced-form tests of scale effects in markets with search, run when aggregate matching functions are estimated, may …

. We sketch the theoretical framework of matching estimators as a substitute for randomization in labor market programs …-in-differences matching estimator of treatment effects. Treatment and control groups are matched over individual observable characteristics …

underlying theory is the search and matching model, with workers and firms engaging in costly search leading to random matching … from it, generated by matching. …

This Paper proposes and develops a dynamic matching model à la Mortensen and Pissarides (1994, 1999a, 1999b) where … in the productivity of existing jobs, the Paper sheds light on: i) the impact of labour market policy on the economy …