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...

Papua New Guinea (PNG) is a fragile state, vulnerable to recurrent shocks. A third wave of the COVID-19 pandemic is straining the healthcare system. Widespread vaccine hesitancy has contributed to very low uptake of the vaccines with about only 2 percent of the population fully vaccinated. Real...

Contingent sovereign debt can create important welfare gains. Nonetheless, there is almost no issuance today. Using hand-collected archival data, we examine the first known case of large-scale use of state-contingent sovereign debt in history. Philip II of Spain entered into hundreds of...

Debt levels in the eurozone have reached new record highs. The member countries have tried to cushion the economic consequences of the corona pandemic with a massive increase in government spending. End of 2021 public debt in relation to GDP will approach 100% on average. There are various calls...

This paper examines whether the current level of debt in the country, given the national government's fiscal policy and plans, remains on a sustainable path. By end-2021, a year after the peak of the public health and economic crisis brought about by the COVID-19 pandemic, the country's...

This paper develops a framework to decompose the change in New Zealand's public debt ratio into four component effects: the primary balance, real GDP growth, real interest rates, and exchange rates. We study New Zealand's debt dynamics over three periods: the decade after the Global Financial...