We analyze changes in unemployment, marginal labor force attachment and participation in Canada and the U.S. Using two complementary decompositions, we show the importance for the comparative evolution of aggregate unemployment of changes in the fraction of the non-employed who are unemployed...

We examine the optimal labor market-policy mix over the business cycle. In a search and matching model with risk-averse workers, endogenous hiring and separation, and unobservable search effort we first show how to decentralize the constrained-efficient allocation. This can be achieved by a...

We develop a nonparametric instrumental variable approach for the estimation of average treatment effects on hazard rates and conditional survival probabilities, without model structure.We derive constructive identification proofs for average treatment effects under noncompliance and dynamic...