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American Economic Review Vol. 105 No. 8 2015

Country Solidarity in Sovereign Crises

Jean Tirole

Toulouse School of Economics (TSE), Université Toulouse 1 Capitole, 21 allée de Brienne, 31015 Toulouse Cedex 06, France, and Institute for Advanced Study in Toulouse (IAST) (e-mail: )

Abstract

When will solidarity, which emerges spontaneously from the fear of spillovers, be reinforced through contracting? The optimal pact between countries that differ substantially in their probability of distress is a simple debt contract with market financing, a borrowing cap, but no joint liability. While joint liability augments total surplus, the borrowing country cannot compensate the deep-pocket guarantor. By contrast, the optimal pact between two countries symmetrically exposed to shocks with an arbitrary correlation is a simple debt contract with joint liability, provided that shocks are sufficiently independent, spillovers sufficiently large, liquidity needs moderate, and available sanctions sufficiently tough.

DOI
10.1257/aer.20121248
Volume
105
Issue
8
Pages
2333-2363
Language
en
Sources
openalex bibtex:phds-export.bib crossref

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