Learning at school and university and also at the work place has become more important in the knowledge-based economy. This paper provides a critical review of recent econometric work on the determinants and impacts of training in Europe. Training has non negligible positive effects for firms...

Lechner and Miquel (2001) approached the causal analysis of sequences of interventions from a potential outcome perspective based on selection on observable type of assumptions (sequential conditional independence assumptions). Lechner (2004) proposed matching estimators for this framework....