ABSTRACT – This paper studies fiscal policy in a model of sovereign debt and default. A time-inconsistency problem arises: since the price of past debt cannot be affected by current fiscal policy and governments cannot credibly commit to a certain path of tax rates, debtor countries choose suboptimally low fiscal adjustments. An international lender of last resort, capable of designing an implicit contract that coax debtors into a tougher fiscal stance via the provision of cheap (but senior) lending in times of crisis, can work as a commitment device and improve social welfare.
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WP 89 Piketty’s Prediction meets technical progress in Harrod-Domar’s Dynamics and Solow-Swan’s Surrogate
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