The following post comes to us from Viral Acharya, Professor of Finance at New York University, and Raghuram Rajan, Professor of Finance at the University of Chicago.
Why do governments repay external sovereign borrowing? This is a question that has been central to discussions of sovereign debt capacity, yet the answer is still being debated. Models where countries service their external debt for fear of being excluded from capital markets for a sustained period (or some other form of harsh punishment such as trade sanctions or invasion) seem very persuasive, yet are at odds with the fact that defaulters seem to be able to return to borrowing in international capital markets after a short while. With sovereign debt around the world at extremely high levels, understanding why sovereigns repay foreign creditors, and what their debt capacity might be, is an important concern for policy makers and investors. In our paper, Sovereign Debt, Government Myopia, and the Financial Sector, forthcoming in the Review of Financial Studies, we attempt to address these issues.