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Keynesian Inefficiency and Optimal Policy: A New Monetarist Approach

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  • STEPHEN D. WILLIAMSON

Abstract

A simple model of monetary/labor search is constructed to study Keynesian indeterminacy and optimal policy. In the model, economic agents have trouble splitting the surplus from exchange appropriately, and we consider monetary and fiscal policies that correct this Keynesian inefficiency. A Taylor rule neither implies determinacy, nor does it support an efficient outcome. An optimal policy yields an efficient and determinate allocation of resources, but equilibrium policy actions, wages, and prices are indeterminate at the optimum.

Suggested Citation

  • Stephen D. Williamson, 2015. "Keynesian Inefficiency and Optimal Policy: A New Monetarist Approach," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 47(S2), pages 197-222, June.
    • Handle: RePEc:wly:jmoncb:v:47:y:2015:i:s2:p:197-222
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    File URL: http://hdl.handle.net/10.1111/jmcb.12218
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    1. Mortensen, Dale & Pissarides, Christopher, 2011. "Job Creation and Job Destruction in the Theory of Unemployment," Economic Policy, Russian Presidential Academy of National Economy and Public Administration, vol. 1, pages 1-19.
    2. Shi, Shouyong, 1998. "Search for a Monetary Propagation Mechanism," Journal of Economic Theory, Elsevier, vol. 81(2), pages 314-352, August.
    3. Russell Cooper & Andrew John, 1988. "Coordinating Coordination Failures in Keynesian Models," The Quarterly Journal of Economics, Oxford University Press, vol. 103(3), pages 441-463.
    4. Diamond, Peter A, 1982. "Aggregate Demand Management in Search Equilibrium," Journal of Political Economy, University of Chicago Press, vol. 90(5), pages 881-894, October.
    5. Michael Woodford, 2001. "The Taylor Rule and Optimal Monetary Policy," American Economic Review, American Economic Association, vol. 91(2), pages 232-237, May.
    6. Aleksander Berentsen & Guido Menzio & Randall Wright, 2011. "Inflation and Unemployment in the Long Run," American Economic Review, American Economic Association, vol. 101(1), pages 371-398, February.
    7. Arthur J. Hosios, 1990. "On The Efficiency of Matching and Related Models of Search and Unemployment," Review of Economic Studies, Oxford University Press, vol. 57(2), pages 279-298.
    8. Ping He & Lixin Huang & Randall Wright, 2005. "Money And Banking In Search Equilibrium," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 46(2), pages 637-670, May.
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    Blog mentions

    As found by EconAcademics.org, the blog aggregator for Economics research:
    1. Should We Think of Confidence as Exogenous?
      by Stephen Williamson in Stephen Williamson: New Monetarist Economics on 2016-06-22 02:17:00

    More about this item

    JEL classification:

    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit

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