The analysis deals with the influence of exporting on the demand for workers with different skill levels. Previous literature suggests that this includes two major topics. First, productivity of exporting firms may increase due to learning facts after entering international markets and/or be...

The analysis deals with the influence of exporting on the demand for workers with different skill levels. Previous literature suggests that this includes two major topics. First, productivity of exporting firms may increase due to learning facts after entering international markets and/or be...

In many fields of economics, and also in other disciplines, it is hard to justify the assumption that the random error terms in regression models are uncorrelated. It seems more plausible to assume that they are correlated within clusters, such as geographical areas or time periods, but...

In many fields of economics, and also in other disciplines, it is hard to justify the assumption that the random error terms in regression models are uncorrelated. It seems more plausible to assume that they are correlated within clusters, such as geographical areas or time periods, but...