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In this paper, we investigate whether countries' trade costs act like other national endowments by affecting the composition of countries' exports. Using an econometric approach that controls for endogeneity by accounting for potentially relevant omitted variables, we find strong evidence for a sample of 37 industrialized and transition countries that national trade costs systematically affect the composition of trade and can be viewed therefore as a source of comparative advantage. Industries located in countries with low trade costs capture significantly higher shares of world exports, where this effect is stronger in trade cost intensive industries. (JEL F11, F14)

In this paper we study the effects of reforms to corporate and personal income taxation on the rate of firm entry and exit using industry data for 19 OECD countries from 1998 to 2005. Using a difference-in-differences approach to correct for endogeneity bias we find that increases in corporate taxation affect entry but not exit. This drop in entry is statistically and economically significant, representing a reduction of 6.3% of pre-treatment levels. A number of placebo and falsification tests suggest that our inferences are not confounded by other factors. For example, the results are specific to the mediating variable used, and our identification strategy is sharpened by a triple-difference specification which rules out alternative fiscal explanations and an instrumental variables technique that leverages instruments found to influence tax policy by the political economy literature. The effects of personal taxation depend upon the marginal tax rate that is altered. Increases in marginal tax rates applied at low income levels negatively affect entry and positively affect exit, whereas marginal tax reforms at higher income levels have the opposite effect.

In this paper, we explore whether higher corporate tax rates, because they lower the after‐tax returns to productivity‐enhancing investments, reduce the speed with which small firms converge to the productivity frontier. Using data for 11 European countries, we find evidence that their productivity catch‐up is slower when the statutory corporate tax rates are higher. In contrast, we find that large firms are instead affected by effective marginal rates. Using the reduced‐form model of productivity convergence of Griffith et al. (2009, Journal of Regional Science 49, 689–720), our results are robust to a host of robustness checks and a natural experiment that exploits the 2001 German tax reforms.