Bank cooperation and banking policy in a monetary union: A political-economy perspective on EMU

Why do large European banks lobby for monetary union? We show in a game-theoretic model that montary union can trigger a change in the structure of the market for international banking transactions with asymmetric effects on profits: large banks are induced to cooperate internationally and gain from European Monetary Union (EMU), while small banks are likely to lose. Monetary union can be interpreted as a device for large banks to push small banks out of the market for cross-border financial services.