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Options, short-sale constraints and market efficiency: A new perspective

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  • Phillips, Blake

Abstract

This paper undertakes a new investigation of the potential for options to mitigate short-sale constraints. I find that option introduction alleviates 79% of the price adjustment efficiency disparity between short-sale constrained and unconstrained stocks in relation to negative news. No significant improvement in adjustment efficiency is found in response to positive information. These results are robust to controls for endogeneity biases associated with the option introduction selection process. Further, I find evidence that post-option improvement in efficiency is similar in relation to private and public information. This suggests that short-sale constraint effects stem, at least in part, from an irrational, optimism bias or another behavioral source as suggested theoretically by Miller (1977). Collectively, these results suggest that options act as an effective substitute to short-sales, significantly contributing to the informational efficiency of the market.

Suggested Citation

  • Phillips, Blake, 2011. "Options, short-sale constraints and market efficiency: A new perspective," Journal of Banking & Finance, Elsevier, vol. 35(2), pages 430-442, February.
  • Handle: RePEc:eee:jbfina:v:35:y:2011:i:2:p:430-442
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    References listed on IDEAS

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    Cited by:

    1. Zhao, Zhongkuang & Li, Shuqi & Xiong, Heping, 2014. "Short sale constraints, disperse pessimistic beliefs and market efficiency — Evidence from the Chinese stock market," Economic Modelling, Elsevier, vol. 42(C), pages 333-342.
    2. R. Jared DeLisle & Bong Soo Lee & Nathan Mauck, 2016. "The dynamic relation between options trading, short selling, and aggregate stock returns," Review of Quantitative Finance and Accounting, Springer, vol. 47(3), pages 645-671, October.
    3. Charupat, Narat & Miu, Peter, 2011. "The pricing and performance of leveraged exchange-traded funds," Journal of Banking & Finance, Elsevier, vol. 35(4), pages 966-977, April.
    4. Delisle, R. Jared & Lee, Bong Soo & Mauck, Nathan, 2012. "The dynamic relation between short sellers, option traders, and aggregate returns," MPRA Paper 42566, University Library of Munich, Germany.
    5. repec:uts:finphd:34 is not listed on IDEAS
    6. Lim, Kian-Ping & Hooy, Chee-Wooi & Chang, Kwok-Boon & Brooks, Robert, 2016. "Foreign investors and stock price efficiency: Thresholds, underlying channels and investor heterogeneity," The North American Journal of Economics and Finance, Elsevier, vol. 36(C), pages 1-28.
    7. Agyei-Ampomah, Sam & Mazouz, Khelifa, 2011. "The comovement of option listed stocks," Journal of Banking & Finance, Elsevier, vol. 35(8), pages 2056-2069, August.
    8. Le, Van & Zurbruegg, Ralf, 2016. "The impact of short sale restrictions on informed trading in the stock and options markets," International Review of Economics & Finance, Elsevier, vol. 41(C), pages 262-273.
    9. repec:spr:jecfin:v:42:y:2018:i:1:d:10.1007_s12197-017-9393-y is not listed on IDEAS
    10. repec:eee:ecolet:v:158:y:2017:i:c:p:77-79 is not listed on IDEAS
    11. Fellner, Gerlinde & Theissen, Erik, 2014. "Short sale constraints, divergence of opinion and asset prices: Evidence from the laboratory," Journal of Economic Behavior & Organization, Elsevier, vol. 101(C), pages 113-127.
    12. Chen, Chien-Hua & Su, Xuan-Qi & Lin, Jun-Biao, 2016. "The role of information uncertainty in moving-average technical analysis: A study of individual stock-option issuance in Taiwan," Finance Research Letters, Elsevier, vol. 18(C), pages 263-272.
    13. Autore, Don M. & Billingsley, Randall S. & Kovacs, Tunde, 2011. "The 2008 short sale ban: Liquidity, dispersion of opinion, and the cross-section of returns of US financial stocks," Journal of Banking & Finance, Elsevier, vol. 35(9), pages 2252-2266, September.

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