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

markets. This approach explains a variety of features exhibited in disaggregated trade data, including the higher productivity … industry and firm productivity. …

, 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 …

determine heterogeneity across firms in size and productivity in the same industry. We then incorporate these organisational … increase in aggregate productivity of an industry depending on which of these margins dominate. Trade may trigger firms to opt …

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 …

quality. We model theoretically the effects of real exchange rate changes on the optimal price and quantity responses of firms … that export multiple products with heterogeneous levels of quality. The model shows that the elasticity of demand perceived … by exporters decreases with a real depreciation and with quality, leading to more pricing-to-market and to a smaller …

distribution costs in the export market, high and low productivity firms react differently to a depreciation . Whereas high … productivity firms optimally raise their markup rather than the volume they export, low productivity firms choose the opposite … aggregate impact of exchange rate movements. The presence of fixed costs to export means that only high productivity firms can …

-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 …

Trefler (2004, AER) and others that industrial productivity increases more strongly in liberalized industries than in non … productivity increases more strongly in non-liberalized industries than in liberalized industries. …