between firm size, scope and productivity. More efficient firms become exporters, but not all exporters are large and not all …

, scope, and productivity. In the model, firms are heterogeneous in how well they cope with expanding their product range. The …-discount puzzle" found in the data. Globalization induces a merger wave that leads to an improvement in average productivity. This … improvement is not due to selection effects but rather due to product-level productivity effects. The model predicts that …

productivity premium. Using a model of heterogeneous firms that can move between regions, Baldwin and Okubo (2006) show how more … intensive. As a result, our model can produce sorting to the large regions from both ends of the productivity distribution …. Firms with high capital intensity and high productivity as well as firms with very low productivity and low capital …

elasticity and multiple asymmetric regions, in which trade integration induces wage and productivity changes. Using Canada … productivity. Given the estimated parameter values, we first decompose ‘border effects’ into a ‘pure’ border effect, relative and … Canada-US border on regional market aggregates such as wages, productivity, markups, the mass of varieties produced and …

-border versus foreign-affiliate sales. We find that for firms in our sample productivity is both a statistically significant and …

homogeneous firm model that is a special case of a heterogeneous firm model with a degenerate productivity distribution. Keeping … all structural parameters besides the productivity distribution the same, we show that the two models have different … quantitatively important (up to a few percentage points of GDP). Under the assumption of a Pareto productivity distribution, the two …