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Commodity Money Equilibrium in a Convex Trading Post Economy with Transaction Costs

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  • Starr, Ross M.

Abstract

Existence and efficiency of general equilibrium with commodity money is investigated in an economy where N commodities are traded at N(N-1)/2 commodity-pairwise trading posts. Trade is a resource-using activity recovering transaction costs through the spread between bid (wholesale) and ask (retail) prices. Budget constraints, enforced at each trading post separately, imply demand for a carrier of value between trading posts. Existence of general equilibrium is established under conventional convexity and continuity conditions while structuring the price space to account for distinct bid and ask price ratios. Commodity money flows are identified as the difference between gross and net inter-post trades.

Suggested Citation

  • Starr, Ross M., 2007. "Commodity Money Equilibrium in a Convex Trading Post Economy with Transaction Costs," University of California at San Diego, Economics Working Paper Series qt8rj7w6vg, Department of Economics, UC San Diego.
    • Handle: RePEc:cdl:ucsdec:qt8rj7w6vg
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    References listed on IDEAS

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    1. Kurz, Mordecai, 1974. "Equilibrium in a Finite Sequence of Markets with Transaction Cost," Econometrica, Econometric Society, vol. 42(1), pages 1-20, January.
    2. Starr, Ross M., 2008. "Mengerian Saleableness and Commodity Money in a Walrasian Trading Post Example," University of California at San Diego, Economics Working Paper Series qt92k1n9mn, Department of Economics, UC San Diego.
    3. Ross M. Starr, 2003. "Why is there money? Endogenous derivation of `money' as the most liquid asset: a class of examples," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 21(2), pages 455-474, March.
    4. 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.
    5. Shapley, Lloyd S & Shubik, Martin, 1977. "Trade Using One Commodity as a Means of Payment," Journal of Political Economy, University of Chicago Press, vol. 85(5), pages 937-968, October.
    6. Starr, Ross M., 2003. "Monetary general equilibrium with transaction costs," Journal of Mathematical Economics, Elsevier, vol. 39(3-4), pages 335-354, June.
    7. Frank Hahn, 1973. "On Transaction Costs, Inessential Sequence Economies and Money," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 40(4), pages 449-461.
    8. Hahn, F H, 1971. "Equilibrium with Transaction Costs," Econometrica, Econometric Society, vol. 39(3), pages 417-439, May.
    9. Foley, Duncan K., 1970. "Economic equilibrium with costly marketing," Journal of Economic Theory, Elsevier, vol. 2(3), pages 276-291, September.
    10. Starr, Ross M., 2008. "Mengerian saleableness and commodity money in a Walrasian trading post example," Economics Letters, Elsevier, vol. 100(1), pages 35-38, July.
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