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Unconventional Fiscal Policy in HANK

Discussion Papers 1953, 45 S.

Hannah Magdalena Seidl, Fabian Seyrich

2021. Updated Version, August 2022.

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We show that in a New Keynesian model with household heterogeneity, fiscal policy can be a perfect substitute for monetary policy: three simple conditions for consumption taxes, labor taxes, and the government debt level are sufficient to induce the same consumption and labor supply of each household and, thus, the same allocation as interest rate policies. When monetary policy is constrained by a binding lower bound, a currency union, or an exchange rate peg, fiscal policy can therefore replicate any allocation that hypothetically unconstrained monetary policy would generate.

Hannah Magdalena Seidl

Ph.D. Student in the Macroeconomics Department

Fabian Seyrich

Ph.D. Student in the Macroeconomics Department

JEL-Classification: E12;E21;E24;E43;E52
Keywords: Unconventional fiscal policy, heterogeneous agents, incomplete markets, liquidity trap, sticky prices
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