World trade evolves at two margins. Where a bilateral trading relationship already exists it may increase through time (intensive margin). But trade may also increase if a trading bilateral relationship is newly established between countries that have not traded with each other in the past...

Does trade openness cause higher GDP per capita? Since the seminal instrumental variables (IV) estimates of Frankel and Romer [F&R](1999) important doubts have surfaced. Is the correlation spurious and driven by omitted geographical and institutional variables? In this paper, we generalize F&R's...

In theoretical trade models with variable markups and collective wage bargaining, exportexposure may reduce the exporter wage premium. We test this prediction using linkedGerman employer-employee data from 1996 to 2007. To separate the rent-sharingmechanism from assortative matching, we exploit...

Many Kyoto countries fear a loss of competitiveness due to unilateral climate policyefforts; policymakers therefore call for carbon-related border tax adjustments. With thispaper we attempt to estimate the treatment effect of Kyoto commitment on bilateralexport flows using regression-adjusted...