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A Comparison of Stock Market Mechanisms

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Author Info
Giovanni Cespa

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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.

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Publisher Info
Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 545.

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Date of creation: May 2001
Date of revision: Nov 2003
Handle: RePEc:upf:upfgen:545

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Related research
Keywords: Financial economics; asset pricing; information and market efficiency;

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Find related papers by JEL classification:
G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
G12 - Financial Economics - - General Financial Markets - - - Asset Pricing
G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Rochet, Jean-Charles & Vila, Jean-Luc, 1994. "Insider Trading without Normality," Review of Economic Studies, Blackwell Publishing, vol. 61(1), pages 131-52, January. [Downloadable!] (restricted)
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  2. 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. [Downloadable!] (restricted)
  3. Grossman, Sanford J, 1992. "The Informational Role of Upstairs and Downstairs Trading," Journal of Business, University of Chicago Press, vol. 65(4), pages 509-28, October. [Downloadable!] (restricted)
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  4. Biais, Bruno, 1993. " Price Information and Equilibrium Liquidity in Fragmented and Centralized Markets," Journal of Finance, American Finance Association, vol. 48(1), pages 157-85, March. [Downloadable!] (restricted)
  5. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November. [Downloadable!] (restricted)
  6. Nicholas Economides & Robert Schwartz,, . "Electronic Call Market Trading," Financial Networks _001, Economics of Networks. [Downloadable!]
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  7. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
  8. Michael J. Fishman & Kathleen M. Hagerty, 1992. "Insider Trading and the Efficiency of Stock Prices," RAND Journal of Economics, The RAND Corporation, vol. 23(1), pages 106-122, Spring. [Downloadable!] (restricted)
  9. Vives, Xavier, 1995. "Short-Term Investment and the Informational Efficiency of the Market," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 8(1), pages 125-60. [Downloadable!] (restricted)
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  10. Diamond, Douglas W. & Verrecchia, Robert E., 1981. "Information aggregation in a noisy rational expectations economy," Journal of Financial Economics, Elsevier, vol. 9(3), pages 221-235, September. [Downloadable!] (restricted)
  11. Rohit Rahi & James Dow, 1998. "Informed Trading, Investment, and Welfare," FMG Discussion Papers dp292, Financial Markets Group. [Downloadable!] (restricted)
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  12. Gertner, Robert H. & Gibbons, Robert. & Scharfstein, David., 1987. "Simultaneous signaling to the capital and product markets," Working papers 1917-87., Massachusetts Institute of Technology (MIT), Sloan School of Management. [Downloadable!]
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  13. Wohl, Avi & Kandel, Shmuel, 1997. "Implications of an Index-Contingent Trading Mechanism," Journal of Business, University of Chicago Press, vol. 70(4), pages 471-88, October. [Downloadable!] (restricted)
  14. Admati, Anat R, 1985. "A Noisy Rational Expectations Equilibrium for Multi-asset Securities Markets," Econometrica, Econometric Society, vol. 53(3), pages 629-57, May. [Downloadable!] (restricted)
  15. Subrahmanyam, Avanidhar, 1991. "A Theory of Trading in Stock Index Futures," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 4(1), pages 17-51. [Downloadable!] (restricted)
  16. Ledyard, John O. & Bossaerts, Peter & Fine, Leslie., 2000. "Inducing Liquidity In Thin Financial Markets Through Combined-Value Trading Mechanisms," Working Papers 1095, California Institute of Technology, Division of the Humanities and Social Sciences. [Downloadable!]
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  17. Madhavan, Ananth, 1992. " Trading Mechanisms in Securities Markets," Journal of Finance, American Finance Association, vol. 47(2), pages 607-41, June. [Downloadable!] (restricted)
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  18. Vives, X., 1992. "The Speed of Information Revelation in a Financial Market Mechanism," UFAE and IAE Working Papers 174.92, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
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  19. Hellwig, Martin F., 1980. "On the aggregation of information in competitive markets," Journal of Economic Theory, Elsevier, vol. 22(3), pages 477-498, June. [Downloadable!] (restricted)
Full references

Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Giovanni Cespa, 2003. "Giffen Goods and Market Making," CSEF Working Papers 97, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy. [Downloadable!]
    Other versions:
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