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Equilibrium and government commitment

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  • Marco Bassetto

Abstract

How should a government use the power to commit to ensure a desirable equilibrium outcome? In this paper, I show a misleading aspect of what has become a standard approach to this question, and I propose an alternative. I show that the complete description of an optimal (indeed, of any) policy scheme requires outlining the consequences of paths that are often neglected. The specification of policy along those paths is crucial in determining which schemes implement a unique equilibrium and which ones leave room for multiple equilibria that depend on the expectations of the private sector.

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Bibliographic Info

Paper provided by Federal Reserve Bank of Minneapolis in its series Working Papers with number 624.

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Date of creation: 2002
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Publication status: Published in Published In: Journal of Economic Theory> (Vol. 124, No. 1, September 2005, pp. 79-105)
Handle: RePEc:fip:fedmwp:624

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Keywords: Equilibrium (Economics);

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  1. Lawrence J. Christiano & Sharon G. Harrison, 1996. "Chaos, sunspots, and automatic stabilizers," Working Paper Series, Macroeconomic Issues WP-96-16, Federal Reserve Bank of Chicago.
  2. Diamond, Douglas W & Dybvig, Philip H, 1983. "Bank Runs, Deposit Insurance, and Liquidity," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 401-19, June.
  3. Morris, Stephen & Shin, Hyun Song, 1997. "Unique Equilibrium in a Model of Self-fulfilling Currency Attacks," CEPR Discussion Papers 1687, C.E.P.R. Discussion Papers.
  4. Martin J Osborne & Ariel Rubinstein, 2009. "A Course in Game Theory," Levine's Bibliography 814577000000000225, UCLA Department of Economics.
  5. Chamley, Christophe, 1986. "Optimal Taxation of Capital Income in General Equilibrium with Infinite Lives," Econometrica, Econometric Society, vol. 54(3), pages 607-22, May.
  6. Kiminori Matsuyama, 1988. "Endogenous Price Fluctuations in an Optimizing Model of a Monetary Economy," Discussion Papers 813, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  7. Judd, Kenneth L., 1985. "Redistributive taxation in a simple perfect foresight model," Journal of Public Economics, Elsevier, vol. 28(1), pages 59-83, October.
  8. Carlsson, H. & Van Damme, E., 1990. "Global Games And Equilibrium Selection," Papers 9052, Tilburg - Center for Economic Research.
  9. V. V. Chari & Patrick J. Kehoe, 1999. "Optimal Fiscal and Monetary Policy," NBER Working Papers 6891, National Bureau of Economic Research, Inc.
  10. V.V. Chari & Patrick J. Kehoe, 1989. "Sustainable plans and mutual default," Staff Report 124, Federal Reserve Bank of Minneapolis.
  11. Svensson, Lars E. O., 1999. "Inflation targeting as a monetary policy rule," Journal of Monetary Economics, Elsevier, vol. 43(3), pages 607-654, June.
  12. Marco Bassetto, 2002. "A Game-Theoretic View of the Fiscal Theory of the Price Level," Econometrica, Econometric Society, vol. 70(6), pages 2167-2195, November.
  13. Sims, Christopher A, 1994. "A Simple Model for Study of the Determination of the Price Level and the Interaction of Monetary and Fiscal Policy," Economic Theory, Springer, vol. 4(3), pages 381-99.
  14. Stokey, Nancy L., 1991. "Credible public policy," Journal of Economic Dynamics and Control, Elsevier, vol. 15(4), pages 627-656, October.
  15. Alesina, A. & Prati, A. & Tabellini, G., 1989. "Public Confidence And Debt Management: A Model And A Case Study Of Italy," Papers 5, California Los Angeles - Applied Econometrics.
  16. Jonathan Eaton, 1987. "Public Debt Guarantees and Private Capital Flight," NBER Working Papers 2172, National Bureau of Economic Research, Inc.
  17. Lucas, Robert Jr. & Stokey, Nancy L., 1983. "Optimal fiscal and monetary policy in an economy without capital," Journal of Monetary Economics, Elsevier, vol. 12(1), pages 55-93.
  18. Calvo, Guillermo A, 1988. "Servicing the Public Debt: The Role of Expectations," American Economic Review, American Economic Association, vol. 78(4), pages 647-61, September.
  19. Cooper,Russell, 1999. "Coordination Games," Cambridge Books, Cambridge University Press, number 9780521570176, October.
  20. Matsuyama, Kiminori, 1990. "Sunspot equilibria (rational bubbles) in a model of money-in-the-utility-function," Journal of Monetary Economics, Elsevier, vol. 25(1), pages 137-144, January.
  21. Chari, V V & Kehoe, Patrick J, 1990. "Sustainable Plans," Journal of Political Economy, University of Chicago Press, vol. 98(4), pages 783-802, August.
  22. Cole, Harold L & Kehoe, Timothy J, 2000. "Self-Fulfilling Debt Crises," Review of Economic Studies, Wiley Blackwell, vol. 67(1), pages 91-116, January.
  23. Cooper,Russell, 1999. "Coordination Games," Cambridge Books, Cambridge University Press, number 9780521578967, October.
  24. Woodford, Michael, 1994. "Monetary Policy and Price Level Determinacy in a Cash-in-Advance Economy," Economic Theory, Springer, vol. 4(3), pages 345-80.
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