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Insider Trading in a Two-Tier real market structure model

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  • Wassim Daher

    () (CES - Centre d'économie de la Sorbonne - CNRS - Centre National de la Recherche Scientifique - UP1 - Université Panthéon-Sorbonne, Gulf University for Science and Technology (GUST) - Department of Mathematics and Natural Sciences)

  • Fida Karam

    () (Gulf University for Science and Technology (GUST) - Department of Economics and Finance)

Abstract

In this paper, we study the real and financial effects of insider trading in the spirit of Jain and Mirman (1999). Unlike the previous works that address this issue, we suppose that the production of the real good is costly and depends mainly of the price of an intermediate good produced locally by a privately-owned firm. We show that the real output of the final good chosen by the insider as well as the price of the intermediate good set by the privately-owned firm are both greater than it would be in the absence of insider trading. Furthermore, the parameters of both real markets affect the stock price and the stock pricing rule. Besides, when compared to Jain and Mirman (2000) and (2002), this two-tier real market structure does not alter the amount of information disseminated in the stock price or the level of insider trading. Next, we add a second insider to the model. We show that competition in the financial sector decreases the level of output produced by firm 1 and the price of the intermediate good with respect to initial model. Moreover, it affects the insiders' trades and increases the amount of information revealed in the stock price.

Suggested Citation

  • Wassim Daher & Fida Karam, 2011. "Insider Trading in a Two-Tier real market structure model," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00653971, HAL.
  • Handle: RePEc:hal:cesptp:halshs-00653971
    Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00653971
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    References listed on IDEAS

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    1. Jean-Charles Rochet & Jean-Luc Vila, 1994. "Insider Trading without Normality," Review of Economic Studies, Oxford University Press, vol. 61(1), pages 131-152.
    2. Daher, Wassim & Mirman, Leonard J., 2007. "Market structure and insider trading," International Review of Economics & Finance, Elsevier, vol. 16(3), pages 306-331.
    3. Jain, Neelam & Mirman, Leonard J., 2002. "Effects of insider trading under different market structures," The Quarterly Review of Economics and Finance, Elsevier, vol. 42(1), pages 19-39.
    4. Wang, Leonard F.S. & Wang, Ya-Chin & Ren, Shuang, 2009. "Stackelberg financial-leader in insider trading model," International Review of Economics & Finance, Elsevier, vol. 18(1), pages 123-131, January.
    5. James Dow, 2003. "Informed Trading, Investment, and Welfare," The Journal of Business, University of Chicago Press, vol. 76(3), pages 439-454, July.
    6. Ludovic Julien, 2011. "A note on Stackelberg competition," Journal of Economics, Springer, vol. 103(2), pages 171-187, June.
    7. Daher, Wassim & Mirman, Leonard J., 2006. "Cournot duopoly and insider trading with two insiders," The Quarterly Review of Economics and Finance, Elsevier, vol. 46(4), pages 530-551, September.
    8. Michael A. Salinger, 1988. "Vertical Mergers and Market Foreclosure," The Quarterly Journal of Economics, Oxford University Press, vol. 103(2), pages 345-356.
    9. Creane, Anthony, 1994. "Experimentation with Heteroskedastic Noise," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 4(2), pages 275-286, March.
    10. Leonard J. Mirman & Neelam Jain, 2000. "Real and financial effects of insider trading with correlated signals," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 16(2), pages 333-353.
    11. Leonard F.S. Wang & Ya-Chin Wang, 2010. "Stackelberg real-leader in an insider trading model," Studies in Economics and Finance, Emerald Group Publishing, vol. 27(1), pages 30-46, March.
    12. Leland, Hayne E, 1992. "Insider Trading: Should It Be Prohibited?," Journal of Political Economy, University of Chicago Press, vol. 100(4), pages 859-887, August.
    13. Tighe, Carla & Michener, Ron, 1994. "The Political Economy of Insider-Trading Laws," American Economic Review, American Economic Association, vol. 84(2), pages 164-168, May.
    14. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-1335, November.
    15. Neelam Jain & Leonard J. Mirman, 2001. "Multinational Learning under Asymmetric Information," Southern Economic Journal, Southern Economic Association, vol. 67(3), pages 637-655, January.
    16. Michael Manove, 1989. "The Harm from Insider Trading and Informed Speculation," The Quarterly Journal of Economics, Oxford University Press, vol. 104(4), pages 823-845.
    17. Lin, Ping & Saggi, Kamal, 2007. "Multinational firms, exclusivity, and backward linkages," Journal of International Economics, Elsevier, vol. 71(1), pages 206-220, March.
    18. Jain, Neelam & Mirman, Leonard J., 1999. "Insider trading with correlated signals," Economics Letters, Elsevier, vol. 65(1), pages 105-113, October.
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    1. repec:hal:journl:halshs-00676502 is not listed on IDEAS
    2. Wassim Daher & Harun Aydilek & Fida Karam & Asiye Aydilek, 2014. "Insider trading with product differentiation," Journal of Economics, Springer, vol. 111(2), pages 173-201, March.

    More about this item

    Keywords

    Kyle model.; correlated signals; Kyle model; Insider trading; Two-Tier market; Stackelberg; modèle de Kyle.; signaux corrélés; Initié; Stakelberg;

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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