Sovereign defaults have punctuated financial history, yet the modern record shows a clear bias toward smaller, poorer nations. Data from the Bank of Canada and Bank of England reveal that wealthier economies stay largely insulated. The 1933 repeal affected $100bn of debt, about 180% of U.S. GDP, briefly spiking global distress. Investors monitor these cycles to price sovereign risk.

During the 1980s, soaring U.S. rates under Paul Volcker turned dollar‑denominated debt into a crushing burden, igniting a wave of defaults across Latin America. The subsequent Brady plan restructured billions, yet the continent endured a second surge of sovereign failures. Africa joined the trend after the Cold War, while Soviet breakup added official‑sector arrears, still influencing emerging‑market pricing today.

Two recent outliers illustrate the cost of sovereign defaults. Greece recorded the largest private‑sector default in 2012 and the biggest official‑sector failure a year later, while the UK lingered for three decades over an Iranian weapons dispute settled only in 2022, IMF review links defaults to rising poverty and a loss of about one year of life expectancy. Consequently, sovereign CDS premiums often spike.