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Borrowing Constraint and the Effect of Option Introduction

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  • Amira, Khaled
  • Bennour, Khaled

Abstract

This paper studies how options trading, by circumventing constraints on borrowing, permits optimistic investors to hold the desired portfolio. Unconstrained investors proceed to a portfolio rebalancing by constructing a zero-income portfolio that consists of a short position in the option, a long position in the stock and a short position in the riskless asset. We show that aggregate demand for the stock is what prevails when options do not exist and no constraints hold. Furthermore, the option listing causes an increase in the aggregate demand for the stock and consequently an increase in the equilibrium stock price.

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Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 26440.

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Date of creation: Oct 2010
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Handle: RePEc:pra:mprapa:26440

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Keywords: options; credit constraints; stock price; arbitrage;

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  1. Hart, Oliver D., 1975. "On the optimality of equilibrium when the market structure is incomplete," Journal of Economic Theory, Elsevier, vol. 11(3), pages 418-443, December.
  2. Santa-Clara, Pedro & Saretto, Alessio, 2009. "Option strategies: Good deals and margin calls," Journal of Financial Markets, Elsevier, vol. 12(3), pages 391-417, August.
  3. Garleanu, Nicolae Bogdan & Pedersen, Lasse Heje & Poteshman, Allen M, 2005. "Demand-Based Option Pricing," CEPR Discussion Papers 5420, C.E.P.R. Discussion Papers.
  4. Jérôme Detemple & Angel Serrat, 2003. "Dynamic Equilibrium with Liquidity Constraints," Review of Financial Studies, Society for Financial Studies, vol. 16(2), pages 597-629.
  5. Ross, Stephen A, 1976. "Options and Efficiency," The Quarterly Journal of Economics, MIT Press, vol. 90(1), pages 75-89, February.
  6. Grossman, Sanford J, 1988. "An Analysis of the Implications for Stock and Futures Price Volatility of Program Trading and Dynamic Hedging Strategies," The Journal of Business, University of Chicago Press, vol. 61(3), pages 275-98, July.
  7. Detemple, Jerome B & Selden, Larry, 1991. "A General Equilibrium Analysis of Option and Stock Market Interactions," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 32(2), pages 279-303, May.
  8. Back, Kerry, 1993. "Asymmetric Information and Options," Review of Financial Studies, Society for Financial Studies, vol. 6(3), pages 435-72.
  9. Stein, Jeremy C., 1987. "Informational Externalities and Welfare-Reducing Speculation," Scholarly Articles 3660740, Harvard University Department of Economics.
  10. Conrad, Jennifer, 1989. " The Price Effect of Option Introduction," Journal of Finance, American Finance Association, vol. 44(2), pages 487-98, June.
  11. Detemple, Jerome & Jorion, Philippe, 1990. "Option listing and stock returns : An empirical analysis," Journal of Banking & Finance, Elsevier, vol. 14(4), pages 781-801, October.
  12. Shleifer, Andrei, 1986. " Do Demand Curves for Stocks Slope Down?," Journal of Finance, American Finance Association, vol. 41(3), pages 579-90, July.
  13. Biais, Bruno & Hillion, Pierre, 1994. "Insider and Liquidity Trading in Stock and Options Markets," Review of Financial Studies, Society for Financial Studies, vol. 7(4), pages 743-80.
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