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On policy interactions among nations : when do cooperation and commitment matter ?

This paper offers a framework to study commitment and cooperation issues in games with multiple policymakers. To reconcile some puzzles in the recent literature on the nature of policy interactions among nations, we prove that games characterized by different commitment and cooperation schemes can admit the same equilibrium outcome if certain spillover effects vanish at the common solution of these games. We provide a detailed discussion of these spillovers, showing that, in general, commitment and cooperation are non-trivial issues. Yet, in linear-quadratic models with multiple policymakers commitment and cooperation schemes are shown to become irrelevant under certain assumptions. The framework is sufficiently general to cover a broad range of results from the recent literature on policy interactions as special cases, both within monetary unions and among fully sovereign nations.

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File URL: ftp://mse.univ-paris1.fr/pub/mse/CES2008/V08071.pdf
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Paper provided by Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne in its series Documents de travail du Centre d'Economie de la Sorbonne with number v08071.

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Length: 38 pages
Date of creation: Dec 2008
Date of revision:
Handle: RePEc:mse:cesdoc:v08071
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  17. Beetsma, Roel & Jensen, Henrik, 2002. "Monetary and Fiscal Policy Interactions in a Micro-Funded Model of a Monetary Union," CEPR Discussion Papers 3591, C.E.P.R. Discussion Papers.
  18. V.V. Chari & Patrick J. Kehoe, 1989. "International coordination of fiscal policy in limiting economies," Staff Report 121, Federal Reserve Bank of Minneapolis.
  19. Calmfors, Lars, 2001. "Unemployment, Labor Market Reform, and Monetary Union," Journal of Labor Economics, University of Chicago Press, vol. 19(2), pages 265-89, April.
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  28. Russell Cooper & Hubert Kempf, 2002. "Overturning Mundell: fiscal policy in a monetary union," Staff Report 311, Federal Reserve Bank of Minneapolis.
  29. Coenen, Günter & Lombardo, Giovanni & Smets, Frank & Straub, Roland, 2008. "International transmission and monetary policy cooperation," Working Paper Series 0858, European Central Bank.
  30. Gilles Oudiz & Jeffrey Sachs, 1984. "Macroeconomic Policy Coordination among the Industrial Economies," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 15(1), pages 1-76.
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  33. Dixit, Avinash & Lambertini, Luisa, 2001. "Monetary-fiscal policy interactions and commitment versus discretion in a monetary union," European Economic Review, Elsevier, vol. 45(4-6), pages 977-987, May.
  34. V. V. Chari & Patrick J. Kehoe, 1998. "On the need for fiscal constraints in a monetary union," Working Papers 589, Federal Reserve Bank of Minneapolis.
  35. Sutherland, Alan, 2004. "International Monetary Policy Coordination and Financial Market Integration," CEPR Discussion Papers 4251, C.E.P.R. Discussion Papers.
  36. Devereux, Michael B, 1990. "International Cooperation, Precommitment, and Welfare," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 31(2), pages 439-56, May.
  37. Beetsma, Roel & Uhlig, Harald, 1999. "An Analysis of the Stability and Growth Pact," Economic Journal, Royal Economic Society, vol. 109(458), pages 546-71, October.
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