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Unconventional policies in state-dependent liquidity traps

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  • Tayler, William J.
  • Zilberman, Roy

Abstract

We characterize optimal unconventional monetary and fiscal-financial policies against supply- and demand-driven liquidity traps within a tractable New Keynesian model featuring a cash-in-advance constraint and a monetary policy cost channel. Deposit subsidies circumvent the inflation-output trade-off arising from stagflationary shocks and supply-driven liquidity traps by enabling negative nominal interest rates. Additionally, deposit taxes facilitate modest interest rate hikes to escape demand-driven deflationary traps. Notably, discretionary and commitment policies with deposit taxes / subsidies deliver virtually equivalent welfare gains, rendering time-inconsistent forward guidance schedules unnecessary. We also derive robust and implementable optimal policy rules when the sources of shocks are unknown.

Suggested Citation

  • Tayler, William J. & Zilberman, Roy, 2024. "Unconventional policies in state-dependent liquidity traps," Journal of Economic Dynamics and Control, Elsevier, vol. 168(C).
    • Handle: RePEc:eee:dyncon:v:168:y:2024:i:c:s0165188924001489
    DOI: 10.1016/j.jedc.2024.104956
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    More about this item

    Keywords

    Deposit tax-subsidy; Cost channel; Optimal policy; Discretion vs. commitment; Zero lower bound;
    All these keywords.

    JEL classification:

    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • E63 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Comparative or Joint Analysis of Fiscal and Monetary Policy; Stabilization; Treasury Policy

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