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A comparison of stock market mechanisms

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  • Giovanni Cespa

Abstract

This paper studies the relationship between the amount of public information that stock market prices incorporate and the equilibrium behavior of market participants. The analysis is framed in a static, NREE setup where traders exchange vectors of assets accessing multidimensional information under two alternative market structures. In the first (the unrestricted system), both informed and uninformed speculators can condition their demands for each traded asset on all equilibrium prices; in the second (the restricted system), they are restricted to condition their demand on the price of the asset they want to trade. I show that informed traders’ incentives to exploit multidimensional private information depend on the number of prices they can condition upon when submitting their demand schedules, and on the specific price formation process one considers. Building on this insight, I then give conditions under which the restricted system is more efficient than the unrestricted system.

Suggested Citation

  • Giovanni Cespa, 2001. "A comparison of stock market mechanisms," Economics Working Papers 545, Department of Economics and Business, Universitat Pompeu Fabra, revised Nov 2003.
  • Handle: RePEc:upf:upfgen:545
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    References listed on IDEAS

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    1. Biais, Bruno, 1993. " Price Information and Equilibrium Liquidity in Fragmented and Centralized Markets," Journal of Finance, American Finance Association, vol. 48(1), pages 157-185, March.
    2. Vives, Xavier, 1995. "Short-Term Investment and the Informational Efficiency of the Market," Review of Financial Studies, Society for Financial Studies, vol. 8(1), pages 125-160.
    3. Nicholas Economides & Robert Schwartz,, "undated". "Electronic Call Market Trading," Financial Networks _001, Economics of Networks.
    4. Caballe, J. & Krishnan, M., 1989. "Insider Trading and asset Pricing in an Imperfectly Competitive Multi- Secrity Market," UFAE and IAE Working Papers 132.90, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
    5. Madhavan, Ananth, 1992. " Trading Mechanisms in Securities Markets," Journal of Finance, American Finance Association, vol. 47(2), pages 607-641, June.
    6. Subrahmanyam, Avanidhar, 1991. "A Theory of Trading in Stock Index Futures," Review of Financial Studies, Society for Financial Studies, vol. 4(1), pages 17-51.
    7. Pagano, Marco & Roell, Ailsa, 1996. " Transparency and Liquidity: A Comparison of Auction and Dealer Markets with Informed Trading," Journal of Finance, American Finance Association, vol. 51(2), pages 579-611, June.
    8. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-1335, November.
    9. Wohl, Avi & Kandel, Shmuel, 1997. "Implications of an Index-Contingent Trading Mechanism," The Journal of Business, University of Chicago Press, vol. 70(4), pages 471-488, October.
    10. Admati, Anat R, 1985. "A Noisy Rational Expectations Equilibrium for Multi-asset Securities Markets," Econometrica, Econometric Society, vol. 53(3), pages 629-657, May.
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    Cited by:

    1. Giovanni Cespa, 2003. "Giffen Goods and Market Making," Working Papers 68, Barcelona Graduate School of Economics.
    2. Bossaerts, Peter & Fine, Leslie & Ledyard, John, 2002. "Inducing liquidity in thin financial markets through combined-value trading mechanisms," European Economic Review, Elsevier, vol. 46(9), pages 1671-1695, October.
    3. Schellhorn, Henry, 2011. "A trading mechanism contingent on several indices," European Journal of Operational Research, Elsevier, vol. 213(3), pages 551-558, September.
    4. Giovanni Cespa, 2008. "Information Sales and Insider Trading with Long-Lived Information," Journal of Finance, American Finance Association, vol. 63(2), pages 639-672, April.
    5. Giovanni Cespa, 2007. "Information Sales and Insider Trading with Long-lived Information," Working Papers 613, Queen Mary University of London, School of Economics and Finance.
    6. Cespa, Giovanni & Foucault, Thierry, 2011. "Learning from Prices, Liquidity Spillovers, and Market Segmentation," CEPR Discussion Papers 8350, C.E.P.R. Discussion Papers.

    More about this item

    Keywords

    Financial economics; asset pricing; information and market efficiency;

    JEL classification:

    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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