This article surveys the literature on sovereign debt sustainability from its origins in the mid-1980s to the present, focusing on four debates. First, the shift from an “accounting based” view of debt sustainability, evaluated using government borrowing rates, to a “model based” view which uses stochastic discount rates. Second, empirical tests focusing on the relationship between primary balances to debt. Third, debt sustainability in the presence of rollover risk. And fourth, whether government borrowing costs below rates of growth (“r

This study presents the facts, arguments and scenarios around public debt from a global perspective. Especially the largest economies feature record debt and fiscal risks, including from population ageing and financial imbalances. Given low interest rates, there is no imminent problem. But at some point, debt will have to come down. There are four possible scenarios how debt could come down. First, governments could economise and reform. Second, governments could default. Third, governments could erode the real value of debt via inflation and negative real interest rates. However, this scenario cannot continue forever. Policy errors can prompt a loss of confidence, destabilisation and crisis. This fourth scenario last included the largest economies in the 1970s. It would become a major global challenge if it were to happen again in today's interconnected world.

This paper reviews empirical and theoretical work on the links between banks and their governments (the bank-sovereign nexus). How significant is this nexus? What do we know about it? To what extent is it a source of concern? What is the role of policy intervention? The paper concludes with a review of recent policy proposals.

As countries recover from the coronavirus pandemic, they are confronted with an even more challenging debt crisis. Xavier Debrun argues in the foreword that in deciding where we go from here that there is no longer a consensus regarding the optimum design and enforcement of fiscal rules. Rather we must address a series of questions and challenges to the conventional wisdom. This book provides an opportunity for scholars to explore these questions from an international perspective, with reference to European countries, and emerging nations as well as the United States.

The last time global sovereign debt reached the level seen today was at the end of the Second World War, and this shaped a generation of economic policymaking. International institutions were transformed, country policies were often draconian and distortive, and many crises ensued. By the early 1970s, when debt fell back to pre-war levels, the world was radically different. It is likely that changes of a similar magnitude -for better and for worse - will play out over coming decades. Sovereign Debt: A Guide for Economists and Practitioners is an attempt to build some structure around the issues of sovereign debt to help guide economists, practitioners and policymakers through this complicated, but not intractable, subject. Sovereign Debt brings together some of the world's leading researchers and specialists in sovereign debt to cover a range of sub-disciplines within this vast topic. It explores debt management with debt sustainability; debt reduction policies with crisis prevention policies; and the history with the conjuncture. It is a foundation text for all those interested in sovereign debt, with a particular focus real world examples and issues.

The global economy has experienced four waves of rapid debt accumulation over the past 50 years. The first three debt waves ended with financial crises in many emerging market and developing economies. During the current wave, which started in 2010, the increase in debt in these economies has already been larger, faster, and broader-based than in the previous three waves. Current low interest rates mitigate some of the risks associated with high debt. However, emerging market and developing economies are also confronted by weak growth prospects, mounting vulnerabilities, and elevated global risks. A menu of policy options is available to reduce the likelihood that the current debt wave will end in crisis and, if crises do take place, will alleviate their impact.

Restoring Public Debt Sustainability: The Role of Independent Fiscal Institutions represents the first comprehensive survey of a new generation of independent fiscal institutions, established to promote transparency in public finances through real-time monitoring of the soundness of budgetary policymaking. The chapters, authored by heads of the institutions, as well as distinguished policy analysts and academics, explore the rationale and experience of these fiscal watchdogs. Consequently, useful lessons and implications are drawn for the design and practical operation of such institutions. The timeliness of the volume is underscored by the potential role of fiscal watchdogs in containing the public debt crisis that has engulfed a number of countries. Indeed, the recent proliferation of these institutions has been in response to the need for enhancing policy credibility of highly indebted governments in financial markets and, more generally, for strengthening the quality of economic governance. The first part of the book deals with key analytical and institutional issues: the political environment, the scope and limits of these institutions, the delegation of monetary policymaking to an independent body, and the implications of rising public indebtedness. The second part contains case studies of institutions that, for the most part, were born as a result of domestic political developments. The third part presents the experience of institutions whose origins can be traced directly or indirectly to an earlier or a recent financial crisis. The chapters are written from a multidisciplinary - economic, financial, political, legal - perspective, intended for academics, researchers, and practitioners alike.