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Inflation Targeting and Liquidity Traps under Endogenous Credibility

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  • Hommes, C.H.

    (University of Amsterdam)

  • Lustenhouwer, J.

    (University of Amsterdam)

Abstract

We derive policy implications for an inflation targeting central bank, who’s credibility is endogenous and depends on its past ability to achieve its targets. We do this in a New Keynesian framework with heterogeneous agents and boundedly rational expectations. Our assumptions about expectation formations are more in line with expectations observed in survey data and laboratory experiments than the fairly restrictive rational expectations hypothesis. We find that the region of allowed policy parameters is strictly larger under heterogeneous expectations than under rational expectations. Furthermore, with theoretically optimal monetary policy, global stability of the fundamental steady state can be achieved, implying that the system always converges to the targets of the central bank. This result however no longer holds when the zero lower bound (ZLB) on the nominal interest rate is accounted for. Self-fulfilling deflationary spirals can then occur, even under optimal policy. The occurrence of these liquidity traps crucially depends on the credibility of the central bank. Deflationary spirals can be prevented with a high inflation target, aggressive monetary easing, or a more aggressive response to inflation.

Suggested Citation

  • Hommes, C.H. & Lustenhouwer, J., 2015. "Inflation Targeting and Liquidity Traps under Endogenous Credibility," CeNDEF Working Papers 15-03, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.
  • Handle: RePEc:ams:ndfwpp:15-03
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    Cited by:

    1. Bolt, Wilko & Demertzis, Maria & Diks, Cees & Hommes, Cars & Leij, Marco van der, 2019. "Identifying booms and busts in house prices under heterogeneous expectations," Journal of Economic Dynamics and Control, Elsevier, vol. 103(C), pages 234-259.
    2. Gasteiger, Emanuel, 2018. "Do Heterogeneous Expectations Constitute A Challenge For Policy Interaction?," Macroeconomic Dynamics, Cambridge University Press, vol. 22(8), pages 2107-2140, December.
    3. Hagenhoff, Tim & Lustenhouwer, Joep, 2019. "The Rationality Bias," BERG Working Paper Series 144, Bamberg University, Bamberg Economic Research Group.
    4. Mauersberger, Felix & Nagel, Rosemarie & Bühren, Christoph, 2020. "Bounded rationality in Keynesian beauty contests: A lesson for central bankers?," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 14, pages 1-38.
    5. Assenza, T. & Heemeijer, P. & Hommes, C.H. & Massaro, D., 2021. "Managing self-organization of expectations through monetary policy: A macro experiment," Journal of Monetary Economics, Elsevier, vol. 117(C), pages 170-186.
    6. Proaño, Christian R. & Lojak, Benjamin, 2020. "Animal spirits, risk premia and monetary policy at the zero lower bound," Journal of Economic Behavior & Organization, Elsevier, vol. 171(C), pages 221-233.
    7. Bertasiute, Akvile & Massaro, Domenico & Weber, Matthias, 2020. "The behavioral economics of currency unions: Economic integration and monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 112(C).
    8. Kwangyong Park, 2018. "Central Bank Credibility and Monetary Policy," Working Papers 2018-45, Economic Research Institute, Bank of Korea.
    9. Hagenhoff, Tim & Lustenhouwer, Joep, 2020. "The role of stickiness, extrapolation and past consensus forecasts in macroeconomic expectations," BERG Working Paper Series 163, Bamberg University, Bamberg Economic Research Group.
    10. Annicchiarico, Barbara & Surricchio, Silvia & Waldmann, Robert J., 2019. "A behavioral model of the credit cycle," Journal of Economic Behavior & Organization, Elsevier, vol. 166(C), pages 53-83.
    11. Gibbs, Christopher G. & Kulish, Mariano, 2017. "Disinflations in a model of imperfectly anchored expectations," European Economic Review, Elsevier, vol. 100(C), pages 157-174.
    12. De Grauwe, Paul & Ji, Yuemei, 2020. "Structural reforms, animal spirits, and monetary policies," European Economic Review, Elsevier, vol. 124(C).
    13. Hommes, Cars & Lustenhouwer, Joep, 2019. "Managing unanchored, heterogeneous expectations and liquidity traps," Journal of Economic Dynamics and Control, Elsevier, vol. 101(C), pages 1-16.
    14. Lustenhouwer, Joep & Hagenhoff, Tim, 2019. "The Rationality Bias," VfS Annual Conference 2019 (Leipzig): 30 Years after the Fall of the Berlin Wall - Democracy and Market Economy 203553, Verein für Socialpolitik / German Economic Association.
    15. Hagenhoff, Tim, 2018. "An aggregate welfare optimizing interest rate rule under heterogeneous expectations," BERG Working Paper Series 139, Bamberg University, Bamberg Economic Research Group.
    16. Hagenhoff, Tim & Lustenhouwer, Joep, 2020. "The role of stickiness, extrapolation and past consensus forecasts in macroeconomic expectations," Working Papers 0686, University of Heidelberg, Department of Economics.
    17. Gavin Goy & Cars Homme & Kostas Mavromatis, 2018. "Forward Guidance and the Role of Central Bank Credibility," DNB Working Papers 614, Netherlands Central Bank, Research Department.

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    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium

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