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A Signaling Model of Multiple Currencies

  • Narayana Kocherlakota

    (Federal Reserve Bank of Minneapolis)

  • Thomas Krueger

    (International Monetary Fund)

In this paper, we demonstrate that it may be socially optimal for countries to have different currencies, even though they have no possibility of independently controlling their money supplies. We assume that agents have heterogeneous preferences over goods of different national origin, and that these preferences are private information. We prove three results. First, for a range of parameters, it is optimal for different countries to have different currencies so that buyers can more efficiently signal their preferences over goods to sellers. Second, if it is socially optimal to have different national currencies, then it is socially optimal for sellers to sell lower quantities to buyers bearing foreign currency. Finally, it is only necessary to have two monies if cross-country trade is optimal. (Copyright: Elsevier)

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Article provided by Elsevier for the Society for Economic Dynamics in its journal Review of Economic Dynamics.

Volume (Year): 2 (1999)
Issue (Month): 1 (January)
Pages: 231-244

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Handle: RePEc:red:issued:v:2:y:1999:i:1:p:231-244
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  1. Townsend, Robert M, 1987. "Economic Organization with Limited Communication," American Economic Review, American Economic Association, vol. 77(5), pages 954-71, December.
  2. Kiyotaki, Nobuhiro & Wright, Randall, 1991. "A contribution to the pure theory of money," Journal of Economic Theory, Elsevier, vol. 53(2), pages 215-235, April.
  3. S. Rao Aiyagari & Neil Wallace, 1991. "Existence of Steady States with Positive Consumption in the Kiyotaki-Wright Model," Review of Economic Studies, Oxford University Press, vol. 58(5), pages 901-916.
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