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Hierarchical Trade

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  • Gersbach, Hans
  • Haller, Hans

Abstract

We study the allocation of commodities through a two-stage hierarchy of competitive markets. Groups or countries trade at global prices while individuals within a group trade at local prices. We identify the free trade and the autarky equilibrium as polar cases. We show that no other two-stage market equilibria exist if the commodity space is two-dimensional. An example demonstrates that other, so-called intermediate equilibria exist for three dimensional commodity spaces. We give two existence proofs for intermediate equilibria in higher dimensions. Each proof provides an explicit construction of special classes of intermediate equilibria. Finally, we consider the consequences for welfare and trade flows when some countries control the agency that organizes trade at the global level.

Suggested Citation

  • Gersbach, Hans & Haller, Hans, 2010. "Hierarchical Trade," CEPR Discussion Papers 7764, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:7764
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    References listed on IDEAS

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    1. Debreu, Gerard, 1970. "Economies with a Finite Set of Equilibria," Econometrica, Econometric Society, vol. 38(3), pages 387-392, May.
    2. Citanna, Alessandro & Cres, Herve & Dreze, Jacques & Herings, P. Jean-Jacques & Villanacci, Antonio, 2001. "Continua of underemployment equilibria reflecting coordination failures, also at Walrasian prices," Journal of Mathematical Economics, Elsevier, vol. 36(3), pages 169-200, December.
    3. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680.
    4. Bell, Clive, 2003. "Development Policy as Public Finance," OUP Catalogue, Oxford University Press, number 9780198773672.
    5. Matthias Lutz, 2004. "Pricing in Segmented Markets, Arbitrage Barriers, and the Law of One Price: Evidence from the European Car Market," Review of International Economics, Wiley Blackwell, vol. 12(3), pages 456-475, August.
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    Cited by:

    1. Hans Gersbach & Hans Haller, 2007. "Hierarchical Trade and Endogenous Price Distortions," CER-ETH Economics working paper series 07/72, CER-ETH - Center of Economic Research (CER-ETH) at ETH Zurich.

    More about this item

    Keywords

    control of trading platforms; Hierarchical trade; intermediate equilibria;

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • F10 - International Economics - - Trade - - - General

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