Vor 200 Jahren hat einer der Gründungsväter der modernen Volkswirtschaftslehre, David Ricardo, in seinem Buch Principles of Political Economy and Taxation die Theorie der komparativen Vorteile vorgestellt. Vom Abbau von Handelsbarrieren profitieren alle Länder, sogar die, die im Vergleich zu...

We develop a model that combines monopolistic competition on goods markets with skill-type heterogeneity on the labor market to analyze the effects of trade and migration on welfare and inequality. Skill-type heterogeneity and partial specificity to firms' endogenously chosen skill requirements...

Country-specific business cycle fluctuations are potentially very costly for member states of currency unions because they lack monetary autonomy. The actual costs depend on the extent to which consumption is shielded from these fluctuations and thus on the extent of risk sharing across member...

We show that the combination of monopolistic competition and input-output linkages generate what we call an input distortion. The distortion arises because material input prices involve a markup over the social opportunity cost. This has so far escaped attention in the literature addressing...

This paper develops and applies a test of the property rights theory of the firm in the context of global input sourcing. We use the model by Pol Antràs and Elhanan Helpman, "Global Sourcing," Journal of Political Economy, 112:3 (2004), 552-80, to derive a new prediction regarding how the...

Ziel dieser Studie ist es zu evaluieren ob und in welchem Ausmaß vergangene Handelsliberalisierungen zu einer Steigerung von Handel, zu einer Erhöhung der Beschäftigung und zu höheren Löhnen in Deutschland beigetragen haben. Dabei wird besonders auf die Bedeutung des Außenhandels auf den...

In this paper, we zoom in on the firm level of German merchandise foreign trade, using a novel data base with information on the export and import value by firm, country, product and year for the period 2011-2019. Problems arising from the consolidated reporting of taxable entities and the...