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Insider Trading in a Two-Tier real market structure model

  • Wassim Daher

    ()

    (Gulf University for Science and Technology (GUST) - Department of Mathematics and Natural Sciences, CES - Centre d'économie de la Sorbonne - CNRS : UMR8174 - Université Paris I - Panthéon-Sorbonne)

  • Fida Karam

    ()

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

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.

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Paper provided by HAL in its series Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) with number halshs-00653971.

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Date of creation: Oct 2011
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Handle: RePEc:hal:cesptp:halshs-00653971
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  1. 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.
  2. 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.
  3. 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.
  4. James Dow, 2003. "Informed Trading, Investment, and Welfare," The Journal of Business, University of Chicago Press, vol. 76(3), pages 439-454, July.
  5. Daher, Wassim & Mirman, Leonard J., 2007. "Market structure and insider trading," International Review of Economics & Finance, Elsevier, vol. 16(3), pages 306-331.
  6. Jain, Neelam & Mirman, Leonard J., 1999. "Insider trading with correlated signals," Economics Letters, Elsevier, vol. 65(1), pages 105-113, October.
  7. Neelam Jain & Leonard J. Mirman, 2001. "Multinational Learning under Asymmetric Information," Southern Economic Journal, Southern Economic Association, vol. 67(3), pages 637-655, January.
  8. Hayne E. Leland., 1990. "Insider Trading: Should It Be Prohibited?," Research Program in Finance Working Papers RPF-195, University of California at Berkeley.
  9. Salinger, Michael A, 1988. "Vertical Mergers and Market Foreclosure," The Quarterly Journal of Economics, MIT Press, vol. 103(2), pages 345-56, May.
  10. Lin, Ping & Saggi, Kamal, 2007. "Multinational firms, exclusivity, and backward linkages," Journal of International Economics, Elsevier, vol. 71(1), pages 206-220, March.
  11. Creane, Anthony, 1994. "Experimentation with Heteroskedastic Noise," Economic Theory, Springer, vol. 4(2), pages 275-86, March.
  12. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
  13. Ludovic Julien, 2011. "A note on Stackelberg competition," Journal of Economics, Springer, vol. 103(2), pages 171-187, June.
  14. Manove, Michael, 1989. "The Harm from Insider Trading and Informed Speculation," The Quarterly Journal of Economics, MIT Press, vol. 104(4), pages 823-45, November.
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