Since the global financial crisis of 2008-2009, public debt in advanced economies has increased substantially. A number of factors related to the financial crisis have fuelled the increase, including fiscal stimulus packages, the nationalisation of private-sector debt, and lower tax revenue. Even if economic growth reverses some of these trends, such as by boosting tax receipts and reducing spending on government programs, ageing populations in advanced economies are expected to strain government debt levels in coming years. This book explores the topics of sovereign debt in advances economies around the world; limiting central government budget deficits; the sustainability of the federal budget deficit; foreign holdings of federal debt and Argentina's defaulted sovereign debt crisis.