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Interactions of fiscal and monetary policies under waves of optimism and pessimism

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  • De Grauwe, Paul
  • Foresti, Pasquale

Abstract

In this article we study fiscal and monetary policies interaction under the assumption that agents have limited cognitive capabilities. To this aim, we employ a behavioral New Keynesian model in which agents’ beliefs generate endogenous waves of optimism and pessimism. The role of such waves is studied under three alternative policy setups: fiscal dominance, monetary dominance and no dominance. Output, inflation, government spending and public debt result to be strongly linked to the agents’ beliefs irrespectively of the policy regime. However, under fiscal dominance the system is characterized by more persistent waves of optimism and pessimism. The consequent higher volatility of the system under fiscal dominance also undermines the central bank’s credibility. We show that in order to minimize these negative effects of fiscal dominance, under such a regime governments should focus on public debt stabilization and leave the stabilization of output and inflation to the monetary authority.

Suggested Citation

  • De Grauwe, Paul & Foresti, Pasquale, 2023. "Interactions of fiscal and monetary policies under waves of optimism and pessimism," LSE Research Online Documents on Economics 119452, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:119452
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    File URL: http://eprints.lse.ac.uk/119452/
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    More about this item

    Keywords

    monetary policy; fiscal policy; beliefs; heuristics; animal spirits; Elsevier deal;
    All these keywords.

    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions
    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination

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