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...

In studies concluding that public debt may hamper GDP growth, the debt tipping effects are estimated as if there were a single global currency. This means that such studies ignore the likely biggest cause of changes in growth rates, namely damage from exchange rate liquidity shocks because we do...

The large Public Sector Purchase Programme (PSPP) which the ECB started in 2015 on the basis of monetary policy purposes, had major side-effects on fiscal policy. One concerns the programme´s uncommon seigniorage effects. We find that the PSPP not only led to partly negative seigniorage gains,...