Motivated by the recent European debt crisis, this paper investigates the scope for a bailout guarantee in a sovereign debt crisis. Defaults may arise from negative income shocks, government impatience or a "sunspot"-coordinated buyers strike. We introduce a bailout agency, and characterize the minimal actuarially fair intervention that guarantees the no-buyers-strike fundamental equilibrium, relying on the market for residual financing. The intervention makes it cheaper for governments to borrow, inducing them borrow more, leaving default probabilities possibly rather unchanged. The maximal backstop will be pulled precisely when fundamentals worsen.

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This paper reviews empirical and theoretical work on the links between banks and their governments (the bank-sovereign nexus). How significant is this nexus? What do we know about it? To what extent is it a source of concern? What is the role of policy intervention? The paper concludes with a review of recent policy proposals.

This paper addresses how public debt should be managed to reduce the cost of private sector bailouts. It uses a tax smoothing model to show that bailouts affect the timing of government deficits and surpluses as well as the composition of public debt. In general, public debt managers will have to monitor the private sector’s leverage and portfolio composition in order to design the tax smoothing policy. This contrasts with Ricardian models where households monitor the government’s debt. The moral hazard aspect of defaults is also shown to be important in determining an optimal government debt strategy.

Studies have shown that markets may underprice sub-national governments’ risk on the implicit assumption that these entities would be bailed out by their central government in case of financial difficulties. However, the question of whether sovereigns pay a premium on their own borrowing as a result of (implicitly or explicitly) guaranteeing sub-entities’ debt has been explored only little. We use an event study approach with separate equations for two levels of government to test for a simultaneous increase in sovereign risk premia and decrease in sub-national risk premia—or a de facto transfer of risk from the latter to the former—on the day a sovereign bailout is announced. Using daily financial market data for Spain and its autonomous regions from January 2010 to June 2013, we find support for our risk transfer hypothesis. We estimate that the Spanish sovereign’s spread may have increased by around 70 basis points as a result of the central government’s support for fiscally distressed comunidades autónomas.

This paper explores how banking sector developments and characteristics influence the propagation of risks from the banking sector to sovereign debt, including how they affect the extent of fiscal costs of banking crises when those occur. It then proposes practices and policies for the fiscal authorities to help manage the risks and enhance crisis preparedness.

Staff Discussion Notes showcase the latest policy-related analysis and research being developed by individual IMF staff and are published to elicit comment and to further debate. These papers are generally brief and written in nontechnical language, and so are aimed at a broad audience interested in economic policy issues. This Web-only series replaced Staff Position Notes in January 2011.