We use stochastic optimal control-dynamic programming (DP) to derive the optimal foreign debt/net worth, consumption/net worth, current account/net worth, and endogenous growth rate in an open economy. Unlike the literature that uses an Intertemporal Budget Constraint (IBC) or the Maximum...

It is now well documented that capital flight has been a dominant feature of capital movements between developing and industrial countries. Since 1988 reductions in the stock of flight capital more than account for private capital flows to emerging markets. This suggests that what appears to be...

We study determinants of sovereign portfolios of Spanish banks over a long time-span, starting in 2008. Our findings challenge the view that banks engaged in moral hazard strategies to exploit the regulatory treatment of sovereign exposures. In particular, we show that being a weakly capitalized...

We use a portfolio-based framework to understand what drives the decline of the U.S. net foreign asset (NFA) position and the reversal in returns earned on the US NFA (exorbitant privilege). We show that global savings gluts and monetary policies widened the U.S. NFA position, while investor...

Capital flows to developing countries are small and take mostly the form of loans rather than direct foreign investment. We build a simple model of North-South capital flows that highlights the interplay between diminishing returns, production risk and sovereign risk. This model generates a set...

We develop a portfolio-based framework to understand the deterioration of the U.S. net foreign asset (NFA) position and the returns earned on U.S. NFA (exorbitant privilege). We show global savings gluts and monetary policies widened the U.S. NFA position, while investor demand shifts offset...