Die Regulierung von Finanzinstituten erfuhr in den letzten Jahren einen grundlegenden Paradigmenwechsel. Hierbei wurde die Idee einer makroprudentiellen Bankenregulierung neu aufgegriffen. Makroprudentiell meint, dass im Gegensatz zum mikroprudentiellen Pendant nicht die individuellen Risiken...

Models of “contagion” rely on market imperfections to explain why adverse shocks in one asset market might be associated with asset sales in many unrelated markets. This paper demonstrates that contagion can be explained with basic portfolio theory without recourse to market imperfections....

Standard theory shows that sterilized foreign exchange interventions do not affect equilibrium prices and quantities, and that domestic and foreign currency denominated bonds are perfect substitutes. This paper shows that when fiscal policy is not sufficiently flexible in response to spending...

This paper models the idiosyncratic or asset-specific return of an asset as the return on a portfolio that is long in that asset and short in other assets in the same class, thereby removing the common components of returns. This is the type of “hedged” position that is held by...

This paper analyzes the role of nonseparable utility and nontradables in business cycles and portfolio choice. I find that nonseparability in utility can change the portfolio choice significantly. Unlike previous results in literature, the optimal portfolio of the traded-good sector equities is...

This paper sets flight capital in the context of portfolio choice, focusing upon the proportion of private wealth that is held abroad. There are large regional differences in this proportion, ranging from 5 percent in South Asia to 40 percent in Africa. We explain cross-country differences in...

This paper assembles a bank-level dataset covering the operations of 38 international banks from eight industrial countries and their subsidiaries overseas during 1995-2004, and studies the extent of diversification gains from their local operations abroad. The paper finds that international...

This paper tests whether reserve portfolios respond to exchange rate changes with a portfolio rebalancing strategy, which requires the purchase of depreciating currencies and sale of appreciating ones. The paper finds empirical support for the strategy, in particular that dollar...

This paper tests a model of the role of stock markets in current account dynamics, developed in a companion paper. With U.S. data, the model performs better than the same model without stock markets. An insight given by the model is that the current account might help predict future stock market...