estimates of the productivity premium of German firms exporting to the Euro-zone and beyond, controlling for unobserved time … observations, or outliers. The paper shows that estimates of the exporter productivity premium by destination are driven by a small … share of outliers. Using a "clean" sample without outliers the estimated productivity premium of firms that export to the …

Empirical research has shown tremendous productivity differences, even within narrowly defined industries. A great host … of studies is explainsing this productivity disparity by factors such as idiosyncratic technology shocks, input price … diversification across industry establishments is positively related to within-industry labor productivity dispersion. -- Product …