This paper examines the international credit portfolios of German banks. We construct a bank-country panel from a unique dataset for a representative set of countries and ask why banks leave diversification opportunities unexploited in some countries. Controlling for bank heterogeneity, we...

There has been mixed evidence regarding the existence of rational bubbles in the foreign exchange markets. Standard unit root and cointegration tests are criticized for their low power to detect rational bubbles that periodically collapse. This paper introduces recently developed sequential unit...

Economic convergence of the new member states (NMS) of the EU towards the old EU countries (EU-15), not only in terms of real income, but also in nominal terms, is of paramount importance for the whole of the EU. We build a dynamic CGE model, starting from the Balassa-Samuelson two-sector...

This paper provides the first in-depth study of the organization of knowledge in multinational firms. The paper develops a theoretical model that studies how firms optimally split knowledge between their headquarters and their production plants if communication costs impede the access of...

German-Pakistani relations cannot be analyzed in isolation of the larger domestic and international trajectories, economic and political, on both sides of the partnership. After a recent democratic power transfer in 2013, Pakistan continues to face complex challenges. The instable security...

This paper examines the Lucas Paradox and the Allocation Puzzle of international capital flows referring to a panel data set of EMU countries and major industrialized and emerging economies. Overall, the results do not provide evidence in favour of the Lucas Paradox and the Allocation Puzzle....

Large current account deficits, and the corresponding reliance on capital flows from abroad, can increase a country's vulnerability to periods of heightened risk and uncertainty. This paper develops a framework to evaluate such vulnerabilities. It highlights the central importance of two...

Banking across borders has risen substantially over the past two decades. Yet there is significant heterogeneity in the international and global activities of banks across countries. This paper develops and tests a theoretical model that explains this variation from an international trade theory...

This paper shows that demographic change plays an important role in the formation of a country's net foreign asset position. An ageing population both lowers the demand and increases the supply of capital in an economy. Fewer workers reduce the required capital stock. As a longer life span leads...