Toward a Theory of International Currency
Our goal is to provide a theoretical framework in which both positive and negative aspects of international currency can be addressed in a systematic way. To this end, we use the framework of random matching games and develop a two country model of the world economy, in which two national fiat currencies compete and may be circulated as media of exchange. There are multiple equilibrium which differ in the areas of circulation of the two currencies. In one equilibrium, the two national currencies are circulated only locally. In another, one of the national currencies is circulated as an international currency. There is also an equilibrium in which both currencies are accepted internationally. We also find an equilibrium in which the two currencies are directly exchanged. The existence conditions of these equilibria are characterized, using the relative country size and the degree of economic integration as the key parameters. In order to generate sharper predictions in he presence of multiple equilibria, we discuss an evolutionary approach to equilibrium selection, which is used to explain the evolution of the international currency as the two economies become more integrated. Some welfare implications are also discussed. For example, a country can improve its national welfare by letting its own currency circulated internationally, provided the domestic circulation is controlled for. When the total supply is fixed, however, a resulting currency shortage may reduce the national welfare.
|Date of creation:||Mar 1991|
|Contact details of provider:|| Postal: Center for Mathematical Studies in Economics and Management Science, Northwestern University, 580 Jacobs Center, 2001 Sheridan Road, Evanston, IL 60208-2014|
Web page: http://www.kellogg.northwestern.edu/research/math/
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- Nobuhiro Kiyotaki & Randall Wright, 1989.
"A contribution to the pure theory of money,"
123, Federal Reserve Bank of Minneapolis.
- Oh, Seonghwan, 1989. "A theory of a generally acceptable medium of exchange and barter," Journal of Monetary Economics, Elsevier, vol. 23(1), pages 101-119, January.
- Kiyotaki, N. & Wright, R., 1990.
"Search For A Theory Of Money,"
90-15, Wisconsin Madison - Social Systems.
- Matsui, Akihiko, 1992. "Best response dynamics and socially stable strategies," Journal of Economic Theory, Elsevier, vol. 57(2), pages 343-362, August.
- Paul R. Krugman, 1979.
"Vehicle Currencies And the Structure Of International Exchange,"
NBER Working Papers
0333, National Bureau of Economic Research, Inc.
- Krugman, Paul, 1980. "Vehicle Currencies and the Structure of International Exchange," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 12(3), pages 513-526, August.
- Kandori, M. & Mailath, G.J., 1991.
"Learning, Mutation, And Long Run Equilibria In Games,"
71, Princeton, Woodrow Wilson School - John M. Olin Program.
- Kandori, Michihiro & Mailath, George J & Rob, Rafael, 1993. "Learning, Mutation, and Long Run Equilibria in Games," Econometrica, Econometric Society, vol. 61(1), pages 29-56, January.
- M. Kandori & G. Mailath & R. Rob, 1999. "Learning, Mutation and Long Run Equilibria in Games," Levine's Working Paper Archive 500, David K. Levine.
- Lucas, Robert E, Jr, 1986. "Adaptive Behavior and Economic Theory," The Journal of Business, University of Chicago Press, vol. 59(4), pages 401-426, October.
- Marimon, Ramon & McGrattan, Ellen & Sargent, Thomas J., 1990. "Money as a medium of exchange in an economy with artificially intelligent agents," Journal of Economic Dynamics and Control, Elsevier, vol. 14(2), pages 329-373, May.
- I. Gilboa & A. Matsui, 2010.
"Social Stability and Equilibrium,"
Levine's Working Paper Archive
534, David K. Levine.
- John F. O. Bilson & Richard C. Marston, 1984. "Exchange Rate Theory and Practice," NBER Books, National Bureau of Economic Research, Inc, number bils84-1.
- Jones, Robert A, 1976. "The Origin and Development of Media of Exchange," Journal of Political Economy, University of Chicago Press, vol. 84(4), pages 757-775, August.
- Lopez, Robert Sabatino, 1951. "The Dollar of the Middle Ages," The Journal of Economic History, Cambridge University Press, vol. 11(03), pages 209-234, June.
- Jovanovic, Boyan & Rosenthal, Robert W., 1988.
"Anonymous sequential games,"
Journal of Mathematical Economics,
Elsevier, vol. 17(1), pages 77-87, February.
- Paul R. Krugman, 1984. "The International Role of the Dollar: Theory and Prospect," NBER Chapters, in: Exchange Rate Theory and Practice, pages 261-278 National Bureau of Economic Research, Inc.
- Kiyotaki, Nobuhiro & Wright, Randall, 1989. "On Money as a Medium of Exchange," Journal of Political Economy, University of Chicago Press, vol. 97(4), pages 927-954, August.
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