Identification of the strength of human capital externalities at the aggregate level is still not fully understood. The existing method may yield positive or negative externalities even if wages reflect marginal social products. We propose an approach that yields positive average human capital...

We combine growth theory with US Census data on individual schooling and wages to estimate the aggregate return to human capital and human capital externalities in cities. Our estimates imply that a one year increase in average schooling in cities increases their aggregate labour productivity by...

This Paper presents a methodology to identify net demand shocks as well as wage rigidities in heterogeneous labour markets on the basis of nonparametric regression. We show how this approach can be used to make suggestions for immigration policy in economies with labour market rigidities. In an...

We estimate the effects of active labour market policies (ALMP) on subsequent employment by nonparametric instrumental variables and matching estimators. Very informative administrative Swiss data with detailed regional information are combined with exogenous regional variation in programme...

The effects of active labour market policies (ALMP) on individual employment chances and earnings are evaluated by non-parametric instrumental variables based on Swiss administrative data with detailed regional information. Using an exogenous variation in the participation probabilities across...