This is the graduation speech I gave on receiving an honorary doctorate at the University of Athens Economics and Business School. I talk about my Greek family, about how I got interested in economics, and then how in the 1990s I came to think about default, collateral, and leverage as the...

This paper studies how the currency composition of public debt affects debt sustainability in developing countries. We show empirically that the debt-to-GDP ratio tends to grow at a faster rate when countries with a high share of foreign currency debt face a currency depreciation. The paper also...

Developing countries are constrained in financing current account deficits as real capital mobility is still far from perfect. At the same time, capital flows to these countries proved to be extremely volatile. The paper argues that the long-term problem of "too little" should not be confused...