The German financial system is characterized by lower degrees of penetration by foreign commercial banks and of (bank) disintermedation than, for instance, that of the United States. These differences between the two countries could be attributed to the fact that universal banking in Germany...

Does the mere presence of big banks affect macroeconomic outcomes? In this paper, we develop a theory of granularity (Gabaix, 2011) for the banking sector, introducing Bertrand competition and heterogeneous banks charging variable markups. Using this framework, we show conditions under which...

Does the mere presence of big banks affect macroeconomic outcomes? Gabaix (2011) shows that idosyncratic shocks can have aggregate effects if the distribution of firm sizes in manufacturing follows a power law distribution. Our contribution is two-fold. First, we expand the theory of granularity...

Modern trade theory emphasizes firm-level productivity differentials to explain the cross-border activities of non-financial firms. This study tests whether a productivity pecking order also determines international banking activities. Using a novel dataset that contains all German banks’...

Recent developments on international financial markets have called the benefits of bank globalization into question. Large, internationally active banks have acquired substantial market power, and international activities have not necessarily made banks less risky. Yet, surprisingly little is...