We consider public debt from a long-term historical perspective, showing how the purposes for which governments borrow have evolved over time. Periods when debt-to-GDP ratios rose explosively as a result of wars, depressions and financial crises also have a long history. Many of these episodes...

Debt in service of the state -- States and the limits of borrowing -- Democratization and globalization -- Caveat emptor -- Managing problem debts -- Successful consolidation -- Warfare to welfare -- Cycles of debt -- Oil and water -- Missed opportunities -- Debt to the rescue -- COVID-19.

Debt in emerging market and developing economies (EMDEs) is at its highest level in half a century. In about nine out of 10 EMDEs, debt is higher now than it was in 2010 and, in half of the EMDEs, debt is more than 30 percentage points of gross domestic product higher. Historically, elevated...