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Implementing Optimal Monetary Policy: Objectives and Rules

  • Huiping Yuan

    ()

    (Department of Finance, Xiamen University)

  • Stephen M. Miller

    ()

    (Department of Economics, University of Nevada, Las Vegas)

We observe that the inconsistency of optimal policy comes from inconsistency of the social loss function with respect to the economic structure. Accordingly, this paper designs the central bank loss functions and rules, which are consistent with the economic structure and serve as mechanisms to implement optimal policy. We minimize the social loss function and use the idea of implementation theory, in designing the central bank loss functions and policy rules. Both ways result in identical central bank loss functions and policy rules. We also examine four equivalent methods of implementing optimal monetary policy, committing to the social loss function, using discretion with the central bank long-run and short-run loss functions, and following monetary policy rules. The same outcomes emerge from these different policymaking methods because the central bank actually follows the same (similar) policy rules. To some extent, policy rules appear more basic and flexible than social and central bank loss functions. In addition, we observe that the short-run natural employment target eliminates both the average and the state-contingent inflation biases, and a liberal, not conservative, preference eliminates the stabilization bias. As a result, under the designed central bank loss function discretionary policy proves optimal for social welfare. In conclusion, the social loss function, the central bank long-run and short-run loss functions, and monetary policy rules imply a complete regime for implementing optimal policy.

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File URL: http://web.unlv.edu/projects/RePEc/pdf/0911.pdf
File Function: First version, 2008
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Paper provided by University of Nevada, Las Vegas , Department of Economics in its series Working Papers with number 0911.

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Length: 48 pages
Date of creation: Mar 2009
Date of revision:
Publication status: Forthcoming Economic Modelling
Handle: RePEc:nlv:wpaper:0911
Contact details of provider: Phone: (702) 895-3776
Fax: (702) 895-1354
Web page: http://business.unlv.edu/econ/

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  2. Mark Gertler & Jordi Gali & Richard Clarida, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," Journal of Economic Literature, American Economic Association, vol. 37(4), pages 1661-1707, December.
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  8. Vestin, David, 2006. "Price-level versus inflation targeting," Journal of Monetary Economics, Elsevier, vol. 53(7), pages 1361-1376, October.
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  10. Lars E.O. Svensson, 2002. "Inflation Targeting: Should It Be Modeled as an Instrument Rule or a Targeting Rule?," NBER Working Papers 8925, National Bureau of Economic Research, Inc.
  11. Roel M.W.J. Beetsma & Henrik Jensen, . "Optimal Inflation Targets, “Conservative” Central Banks, and Linear Inflation Contracts: Comment," EPRU Working Paper Series 98-11, Economic Policy Research Unit (EPRU), University of Copenhagen. Department of Economics.
  12. Jensen, Henrik, 1997. "Credibility of Optimal Monetary Delegation," American Economic Review, American Economic Association, vol. 87(5), pages 911-20, December.
  13. Persson, Torsten & Tabellini, Guido, 1993. "Designing institutions for monetary stability," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 39(1), pages 53-84, December.
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  18. Andrew Hughes Hallett & Diana N. Weymark, 2006. "Heterogeneity In A Currency Union With Social Market Objectives," Scottish Journal of Political Economy, Scottish Economic Society, vol. 53(1), pages 129-152, 02.
  19. Bennett T. McCallum, 1995. "Two Fallacies Concerning Central Bank Independence," NBER Working Papers 5075, National Bureau of Economic Research, Inc.
  20. Barro, Robert J. & Gordon, David B., 1983. "Rules, discretion and reputation in a model of monetary policy," Journal of Monetary Economics, Elsevier, vol. 12(1), pages 101-121.
  21. Kydland, Finn E & Prescott, Edward C, 1977. "Rules Rather Than Discretion: The Inconsistency of Optimal Plans," Journal of Political Economy, University of Chicago Press, vol. 85(3), pages 473-91, June.
  22. Robert J. Barro & David B. Gordon, 1981. "A Positive Theory of Monetary Policy in a Natural-Rate Model," NBER Working Papers 0807, National Bureau of Economic Research, Inc.
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  26. Bennett T. McCallum, 2004. "Misconceptions Regarding Rules vs. Discretion for Monetary Policy," Cato Journal, Cato Journal, Cato Institute, vol. 23(3), pages 365-372, Winter.
  27. Cecchetti, Stephen G, 2000. "Making Monetary Policy: Objectives and Rules," Oxford Review of Economic Policy, Oxford University Press, vol. 16(4), pages 43-59, Winter.
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