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Global Dynamics at the Zero Lower Bound

Author

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  • William T. Gavin
  • Benjamin D. Keen
  • Alexander W. Richter
  • Nathaniel A. Throckmorton

Abstract

This article presents global solutions to standard New Keynesian models with a zero lower bound (ZLB) constraint on the nominal interest rate. Rather than focus on specific sequences of shocks, we provide the solution for all combinations of technology and discount factor shocks and a thorough explanation of how dynamics change across the state space. Our solution method emphasizes accuracy to capture important expectational effects of going to and returning from the ZLB, which commonly used solution methods based on specific sequences of shocks cannot capture. We focus on the New Keynesian model without capital, but we also study the model with capital, with and without capital adjustment costs. Capital adds another mechanism for intertemporal substitution, which strengthens the expectational effects of the ZLB and impacts dynamics even before the ZLB is hit. We also evaluate how monetary policy affects the likelihood of hitting the ZLB. A policy rule based on a dual mandate is more likely to cause ZLB events when the central bank places greater emphasis on output stabilization.

Suggested Citation

  • William T. Gavin & Benjamin D. Keen & Alexander W. Richter & Nathaniel A. Throckmorton, 2013. "Global Dynamics at the Zero Lower Bound," Auburn Economics Working Paper Series auwp2013-17, Department of Economics, Auburn University.
  • Handle: RePEc:abn:wpaper:auwp2013-17
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    File URL: http://cla.auburn.edu/econwp/Archives/2013/2013-17.pdf
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    More about this item

    Keywords

    Monetary Policy; Zero Lower Bound; Global Solution Method;

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • 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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