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Commodity Money Equilibrium in a Walrasian Trading Post Model: An Example

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  • Starr, Ross M.

Abstract

This paper posits an example of Walrasian general competitive equilibrium in an exchange economy with commodity-pairwise trading posts and transaction costs. Budget balance is enforced for each transaction at each trading post separately. Commodity-denominated bid and ask prices at each post allow the post to cover transaction costs through the bid/ask spread. In the absence of double coincidence of wants, the lower transaction-cost commodity (with the narrowest bid/ask spread) becomes the common medium of exchange, commidty money. Selection of the monetary commodity and adoption of a monetary pattern of trad results from price-guided equilibrium without central direction, fiat, or government

Suggested Citation

  • Starr, Ross M., 2006. "Commodity Money Equilibrium in a Walrasian Trading Post Model: An Example," University of California at San Diego, Economics Working Paper Series qt3267p6wj, Department of Economics, UC San Diego.
    • Handle: RePEc:cdl:ucsdec:qt3267p6wj
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    References listed on IDEAS

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    3. 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.
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    5. Hahn, F H, 1971. "Equilibrium with Transaction Costs," Econometrica, Econometric Society, vol. 39(3), pages 417-439, May.
    6. Peter Howitt, 2005. "Beyond Search: Fiat Money In Organized Exchange," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 46(2), pages 405-429, May.
    7. Walter Perrin Heller & Ross M. Starr, 1976. "Equilibrium with Non-convex Transactions Costs: Monetary and Non-monetary Economies," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 43(2), pages 195-215.
    8. Foley, Duncan K., 1970. "Economic equilibrium with costly marketing," Journal of Economic Theory, Elsevier, vol. 2(3), pages 276-291, September.
    9. David Starrett, 1973. "Inefficiency and the Demand for "Money" in a Sequence Economy," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 40(4), pages 437-448.
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