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When R2 meets the short-sales constraints

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  • Cai, Jinghan
  • Xia, Le

Abstract

We examine the short-selling in the Hong Kong stock market and find that, after the lift of short-sales constraint, the R2 increases, contradicting the traditional wisdom that R2 is a proxy of price inefficiency. Moreover, the change of R2 is from the decrease in idiosyncratic volatility.

Suggested Citation

  • Cai, Jinghan & Xia, Le, 2014. "When R2 meets the short-sales constraints," Economics Letters, Elsevier, vol. 125(3), pages 336-339.
    • Handle: RePEc:eee:ecolet:v:125:y:2014:i:3:p:336-339
    DOI: 10.1016/j.econlet.2014.09.033
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    References listed on IDEAS

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    1. Chen, Crystal Xiaobei & Rhee, S. Ghon, 2010. "Short sales and speed of price adjustment: Evidence from the Hong Kong stock market," Journal of Banking & Finance, Elsevier, vol. 34(2), pages 471-483, February.
    2. Arturo Bris & William N. Goetzmann & Ning Zhu, 2007. "Efficiency and the Bear: Short Sales and Markets Around the World," Journal of Finance, American Finance Association, vol. 62(3), pages 1029-1079, June.
    3. Hou, Kewei & Peng, Lin & Xiong, Wei, 2006. "R2 and Price Inefficiency," Working Paper Series 2006-23, Ohio State University, Charles A. Dice Center for Research in Financial Economics.
    4. Dasgupta, Sudipto & Gan, Jie & Gao, Ning, 2010. "Transparency, Price Informativeness, and Stock Return Synchronicity: Theory and Evidence," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 45(5), pages 1189-1220, October.
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    6. Jose A. Scheinkman & Wei Xiong, 2003. "Overconfidence and Speculative Bubbles," Journal of Political Economy, University of Chicago Press, vol. 111(6), pages 1183-1219, December.
    7. Eric C. Chang & Joseph W. Cheng & Yinghui Yu, 2007. "Short‐Sales Constraints and Price Discovery: Evidence from the Hong Kong Market," Journal of Finance, American Finance Association, vol. 62(5), pages 2097-2121, October.
    8. Artyom Durnev & Randall Morck & Bernard Yeung & Paul Zarowin, 2003. "Does Greater Firm‐Specific Return Variation Mean More or Less Informed Stock Pricing?," Journal of Accounting Research, Wiley Blackwell, vol. 41(5), pages 797-836, December.
    9. John M. Griffin & Patrick J. Kelly & Federico Nardari, 2010. "Do Market Efficiency Measures Yield Correct Inferences? A Comparison of Developed and Emerging Markets," Review of Financial Studies, Society for Financial Studies, vol. 23(8), pages 3225-3277, August.
    10. Diamond, Douglas W. & Verrecchia, Robert E., 1987. "Constraints on short-selling and asset price adjustment to private information," Journal of Financial Economics, Elsevier, vol. 18(2), pages 277-311, June.
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    Cited by:

    1. Li, Fengyun & Petsas, Iordanis & Cai, Jinghan, 2020. "Corporate events, return synchronicity and price efficiency," The Journal of Economic Asymmetries, Elsevier, vol. 21(C).
    2. Zhang, Wei & Li, Xiao & Shen, Dehua & Teglio, Andrea, 2016. "R2 and idiosyncratic volatility: Which captures the firm-specific return variation?," Economic Modelling, Elsevier, vol. 55(C), pages 298-304.

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    More about this item

    Keywords

    R2; Price efficiency; Short-selling; Idiosyncratic volatility;
    All these keywords.

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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