Sovereign Default
What happens when a government stops paying its debts: no bankruptcy court, no bailiff, and consequences that are mostly political.
When a company cannot pay its debts, a court takes its assets and shares them out among the creditors. When a country cannot pay, there is no court with the authority and no way to repossess the country. That one fact shapes everything about government borrowing: why anyone lends at all, what they charge, and why default is a negotiation rather than a legal process.
What makes governments pay is a mix of reputation, the need to borrow again, the trade credit that finances imports, and the willingness of foreign courts to make life difficult. Historically it was also warships. Britain, Germany, and Italy blockaded Venezuela in 1902 over unpaid debts. Egypt's default in 1876 led to Anglo-French financial control and then to British occupation. After the Ottoman default of 1875, European creditors set up the Public Debt Administration, which collected Ottoman taxes directly and at its peak employed 9,000 people, more than the empire's own finance ministry. Default has repeatedly been the road to losing control of your own country.
It happens in waves
Defaults cluster, because the causes are usually global rather than local: a commodity price collapse, a jump in interest rates in the lending country, a war. Habsburg Spain defaulted at least six times despite the silver of the Americas. Most of Latin America and much of Europe stopped paying in the 1930s. Mexico's announcement in August 1982 that it could not service its debts opened a lost decade across Latin America, ended only at the close of the 1980s by the Brady plan, which turned bank loans into tradable bonds with a write-down built in.
Argentina defaulted on roughly $80 billion in 2001, the largest ever at the time, in the middle of a bank run and a freeze on withdrawals that Argentines called the corralito, the little fence. It then spent more than a decade fighting a minority of creditors who refused the restructuring, bought the old bonds cheaply, and sued in New York. A judge's reading of an obscure equal-treatment clause eventually blocked Argentina from paying anyone at all, forcing a second, technical default in 2014.
Greece restructured about 200 billion euros of bonds in 2012, the biggest write-down in history, inside a currency union whose designers had assumed this could never happen. Sri Lanka, Zambia, and Ghana all defaulted in the 2020s.
How it gets sorted out
Modern restructurings have three moving parts. Bondholders accept a haircut, usually some mix of reduced principal, lower interest, and longer repayment. Collective action clauses, now standard in new bonds precisely because of Argentina, let a large majority of creditors bind the holdouts. And the IMF lends into the gap to keep the process orderly, in exchange for a program the government rarely enjoys.
The newest complication is who the creditors are. For many poorer countries the largest single government lender is now China, whose Belt and Road lending left it holding debts it never planned to collect. China is not a member of the Paris Club, prefers stretching out repayment to writing debt off, and negotiates case by case. That is the main reason the G20 framework set up to speed up restructurings after 2020 has moved so slowly.
What it costs
Less than the rhetoric suggests, and in a different way. Output drops sharply in the year of default, domestic banks holding the bonds take losses that can turn a debt crisis into a banking crisis, and credit dries up. But countries typically get back into the bond market within a few years, because investors have short memories when the yields are attractive.
The lasting damage is political. Defaults bring down governments, discredit whatever economic program was in office, and push countries toward whoever is willing to lend next. That is why lending to a government is never only a financial transaction, and why the question of who holds a country's debt is a strategic one.