Abstract
This paper examines how the dynamics of informality affects optimal fiscal policy and default risk. We build a model of sovereign debt with limited commitment and informality to assess the consequences of dynamic distortions induced by fiscal policy. In the model, social policy has a persistent impact on taxable activity, which affects future fiscal revenues and thus default risk. The interaction of tax distortions and limited commitment strongly constrains the dynamics of optimal fiscal policy and leads to (i) more frequent default episodes and (ii) costly fluctuations in consumption.
| Original language | English |
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| Journal | Journal of Political Economy Macroeconomics |
| Early online date | 24 Oct 2025 |
| DOIs | |
| Publication status | E-pub ahead of print - 24 Oct 2025 |