• The IMF staff's 2013 proposal to reprofile (i.e., stretch out for a short period without haircutting principal or interest) the maturing debt of a country that has lost market access is a sensible policy in cases where the IMF is uncertain whether the country's debt stock is sustainable.•...

We express the opinion that sovereign debt sustainability analysis must be augmented by stochastic correlated risk factors and a risk measure to capture tail effects. Crisis situations can thus be adequately specified and analyzed with sufficient accuracy to warrant the relevance of policy...

Can debt moratoria help countries weather negative shocks? We study the bond market effects of an official debt service suspension endorsed by the international community during the Covid-19 pandemic. Using daily data on sovereign bond spreads and synthetic control methods, we show that...

This paper develops a non-stochastic sovereign-debt dynamic model, with increasing cost of capital. It finds that there are parameters for which there is a stable fixed borrowing level, and there are parameters for which the model depicts the case of serial defaulters. Levels of debt that tend...

This chapter is on quantitative models of sovereign debt crises in emerging economies. We interpret debt crises broadly to cover all of the major problems a country can experience while trying to issue new debt, including default, sharp increases in the spread and failed auctions. We examine the...

This paper shows that the optimal sovereign lending contract is state-contingent when a government can default. It provides a theoretical basis for the specification of optimal state-contingent debt instruments (SCDIs) in countries subject to large shocks that can be observed and verified by all...

Developing countries have recently proved reluctant to participate in sovereign debt moratoria and debt relief initiatives. We argue that debtors' (non-)participation decisions can be understood through the lens of real options. Eligible countries compare the net benefits of participating in a...

We present a theory of determinants of sovereign debt stability on foreign and domestic markets. Besides the two traditional factors - debt size and output contractions, we highlight the role of the third factor: distortionary tax, which hinders the government’s ability to freely raise...

This paper explores how selective default expectations affect the pricing of sovereign bonds in a historical laboratory: the German default of the 1930s. We analyze yield differentials between identical government bonds traded across various creditor countries before and after bond market...

Sovereign domestic debt restructurings have become more common in recent years and touched upon a growing share of total public debt. This paper offers a simple framework for policymakers to think about the decision whether to restructure domestic sovereign debt as part of an effort to reduce...