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Monetary policy, fiscal policy and cross signal jamming

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  • Kim, Jeong-Yoo
  • Choi, Hyung Sun

Abstract

This paper considers the issue of rule versus discretion when the central bank and the government share private information but have different preferences over inflation and output. We demonstrate that if the monetary policy is rule-based, Intuitive Criterion selects the unique separating equilibrium in which the central bank signals a low supply shock by a low interest rate. Interestingly, discretion may be better than the rule for the central bank, contrary to the case of complete information. Also, we examine the effect of information asymmetry on the monetary and fiscal policy mix. We show that cross signal jamming whereby the monetary authority and the fiscal authority successfully jams an unfavorable signal of each other does not occur in equilibrium.

Suggested Citation

  • Kim, Jeong-Yoo & Choi, Hyung Sun, 2023. "Monetary policy, fiscal policy and cross signal jamming," Journal of Macroeconomics, Elsevier, vol. 75(C).
    • Handle: RePEc:eee:jmacro:v:75:y:2023:i:c:s0164070422000933
    DOI: 10.1016/j.jmacro.2022.103500
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    More about this item

    Keywords

    Monetary policy; Fiscal policy; Signal; Cross signal jamming; Commitment; Time-inconsistency;
    All these keywords.

    JEL classification:

    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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