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On Financial Markets Incompleteness, Price Stickiness, and Welfare in a Monetary Union

  • Stéphane Auray

    ()

    (Université Lille 3 (GREMARS), Université de Sherbrooke (GREDI) and CIRPÉE)

  • Aurélien Eyquem

    (GATE, UMR 5824, Université de Lyon and Ecole Normale Supérieure Lettres et Sciences Humaines, France)

The paper builds a two-country model of a monetary union with home bias and price stickiness. Incompleteness of financial asset markets is allowed. In this environment, we derive the solution for optimal behavior by the monetary policymaker and show that welfare can be higher under incomplete markets than under complete markets. The argument is a second-best one. In a monetary union with equal nominal rigidity across countries, optimal monetary policy stabilizes aggregate, union-wide inflation, but cannot fully stabilize the country-level inflation rates. Market incompleteness results in less volatility of the terms-of-trade (because part of the adjustment goes through the current account), and hence less volatile national inflation rates. Through this channel, welfare ends up being higher under incomplete markets. These results are also robust when nominal rigidity differs across countries and whenthe form of the monetary policy is modified.

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File URL: http://gredi.recherche.usherbrooke.ca/wpapers/GREDI-0816.pdf
File Function: First version, 2008
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Paper provided by Departement d'Economique de la Faculte d'administration à l'Universite de Sherbrooke in its series Cahiers de recherche with number 08-16.

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Length: 35 pages
Date of creation: 09 Sep 2008
Date of revision: 01 Sep 2009
Handle: RePEc:shr:wpaper:08-16
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  1. Benigno, Pierpaolo, 2004. "Optimal monetary policy in a currency area," Journal of International Economics, Elsevier, vol. 63(2), pages 293-320, July.
  2. Jinill Kim & Sunghyun Henry Kim, 1999. "Spurious Welfare Reversals in International Business Cycle Models," Virginia Economics Online Papers 319, University of Virginia, Department of Economics.
  3. Pierpaolo Benigno, 2009. "Price Stability with Imperfect Financial Integration," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(s1), pages 121-149, 02.
  4. Schmitt-Grohe, Stephanie & Uribe, Martin, 2003. "Closing small open economy models," Journal of International Economics, Elsevier, vol. 61(1), pages 163-185, October.
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  6. Corsetti, Giancarlo, 2006. "Openness and the case for flexible exchange rates," Research in Economics, Elsevier, vol. 60(1), pages 1-21, March.
  7. Guillermo A. Calvo, 1983. "Staggered Contracts and Exchange Rate Policy," NBER Chapters, in: Exchange Rates and International Macroeconomics, pages 235-258 National Bureau of Economic Research, Inc.
  8. Harrigan, James, 1993. "OECD imports and trade barriers in 1983," Journal of International Economics, Elsevier, vol. 35(1-2), pages 91-111, August.
  9. Jinill Kim & Sunghyun Henry Kim & Andrew Levin, 2001. "Patience, persistence and welfare costs of incomplete markets in open economies," International Finance Discussion Papers 696, Board of Governors of the Federal Reserve System (U.S.).
  10. Beetsma, Roel & Jensen, Henrik, 2002. "Monetary and fiscal policy interactions in a micro-founded model of a monetary union," Working Paper Series 0166, European Central Bank.
  11. Cole, Harold L. & Obstfeld, Maurice, 1991. "Commodity trade and international risk sharing : How much do financial markets matter?," Journal of Monetary Economics, Elsevier, vol. 28(1), pages 3-24, August.
  12. Faia, Ester, 2007. "Finance and international business cycles," Journal of Monetary Economics, Elsevier, vol. 54(4), pages 1018-1034, May.
  13. Matthew B. Canzoneri & Robert E. Cumby & Behzad T. Diba, 2004. "The Cost of Nominal Inertia in NNS Models," NBER Working Papers 10889, National Bureau of Economic Research, Inc.
  14. Julio Rotemberg & Michael Woodford, 1997. "An Optimization-Based Econometric Framework for the Evaluation of Monetary Policy," NBER Chapters, in: NBER Macroeconomics Annual 1997, Volume 12, pages 297-361 National Bureau of Economic Research, Inc.
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