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A benefit of uniform currency

  • Ravikumar, B
  • Wallace, Neil

The role of distinct currencies is studied using a random-matching model with randomized trades. The equilibrium concept is the pairwise core in meetings. We show that there exist equilibria in which home and foreign currency play distinct roles and in which the quantities of trade and output are less than the optimal quantities. The benefit of a uniform currency is the elimination of such inferior equilibria. Specifically, any equilibrium in which home and foreign currency play distinct roles is dominated in terms of ex ante welfare by the best one-currency equilibrium -- for some parameters weakly, for some strongly.

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File URL: http://mpra.ub.uni-muenchen.de/22951/1/MPRA_paper_22951.pdf
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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 22951.

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Date of creation: Apr 2002
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Handle: RePEc:pra:mprapa:22951
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  1. Rao Aiyagari, S. & Wallace, Neil & Wright, Randall, 1996. "Coexistence of money and interest-bearing securities," Journal of Monetary Economics, Elsevier, vol. 37(3), pages 397-419, June.
  2. Narayana Kocherlakota & Thomas Krueger, 1999. "A Signaling Model of Multiple Currencies," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(1), pages 231-244, January.
  3. Mendoza, Enrique G, 2001. "The Benefits of Dollarization When Stabilization Policy Lacks Credibility and Financial Markets Are Imperfect," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 33(2), pages 440-74, May.
  4. Alvarez, Fernando, 2001. "Comment on The Benefits of Dollarization When Stabilization Policy Lacks Credibility and Financial Markets Are Imperfect," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 33(2), pages 475-81, May.
  5. Balasko, Yves & Shell, Karl, 1980. "The overlapping-generations model, I: The case of pure exchange without money," Journal of Economic Theory, Elsevier, vol. 23(3), pages 281-306, December.
  6. Manuelli, Rodolfo E & Peck, James, 1990. "Exchange Rate Volatility in an Equilibrium Asset Pricing Model," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 31(3), pages 559-74, August.
  7. Kareken, John & Wallace, Neil, 1981. "On the Indeterminacy of Equilibrium Exchange Rates," The Quarterly Journal of Economics, MIT Press, vol. 96(2), pages 207-22, May.
  8. Kehoe, Timothy J, 2001. "Comment on Dollarization and the Integration of International Capital Markets," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 33(2), pages 590-96, May.
  9. King, Robert G. & Wallace, Neil & Weber, Warren E., 1992. "Nonfundamental uncertainty and exchange rates," Journal of International Economics, Elsevier, vol. 32(1-2), pages 83-108, February.
  10. Christopher J. Waller & Elisabeth S. Curtis, 2003. "Currency restrictions, government transaction policies and currency exchange," Economic Theory, Springer, vol. 21(1), pages 19-42, 01.
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