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U.K. cross-sectional equity data: The case for robust investability filters

  • Rossi, Francesco

We propose a novel approach to cross-sectional equities sample selection, derived from best market practice in index construction and focused on investability. Using the U.K. market as a template, we first demonstrate how the popular Datastream dataset is plagued by data deficiencies that would surely invalidate statistical inferences, and that are not addressed by commonly used filters. We show the benefits and need for a supplementary data source. We then develop robust investability filters to ensure statistical results from cross-sectional analysis are economically meaningful, an issue overlooked by most studies on cross-sectional risk pricing

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 43312.

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Date of creation: Nov 2012
Date of revision: Nov 2012
Publication status: Published in European Economics Letters 1.1(2012): pp. 6-13
Handle: RePEc:pra:mprapa:43312
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  1. Michael W. Brandt & Alon Brav & John R. Graham & Alok Kumar, 2010. "The Idiosyncratic Volatility Puzzle: Time Trend or Speculative Episodes?," Review of Financial Studies, Society for Financial Studies, vol. 23(2), pages 863-899, February.
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  9. Andrew Ang & Robert J. Hodrick & Yuhang Xing & Xiaoyan Zhang, 2008. "High Idiosyncratic Volatility and Low Returns: International and Further U.S. Evidence," NBER Working Papers 13739, National Bureau of Economic Research, Inc.
  10. Yasushi Hamao & Jianping Mei & Yexiao Xu, 2003. "Idiosyncratic Risk and the Creative Destruction in Japan," NBER Working Papers 9642, National Bureau of Economic Research, Inc.
  11. Bartram, Sohnke M. & Brown, Gregory & Stulz, Rene M., 2009. "Why Do Foreign Firms Have Less Idiosyncratic Risk Than U.S. Firms?," Working Paper Series 2009-5, Ohio State University, Charles A. Dice Center for Research in Financial Economics.
  12. Li, Xiafei & Miffre, Joëlle & Brooks, Chris & O'Sullivan, Niall, 2008. "Momentum profits and time-varying unsystematic risk," Journal of Banking & Finance, Elsevier, vol. 32(4), pages 541-558, April.
  13. John Y. Campbell, 2001. "Have Individual Stocks Become More Volatile? An Empirical Exploration of Idiosyncratic Risk," Journal of Finance, American Finance Association, vol. 56(1), pages 1-43, 02.
  14. Ozgur S. Ince & R. Burt Porter, 2006. "INDIVIDUAL EQUITY RETURN DATA FROM THOMSON DATASTREAM: HANDLE WITH CARE!," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 29(4), pages 463-479.
  15. Turan G. Bali & Nusret Cakici & Xuemin (Sterling) Yan & Zhe Zhang, 2005. "Does Idiosyncratic Risk Really Matter?," Journal of Finance, American Finance Association, vol. 60(2), pages 905-929, 04.
  16. Fu, Fangjian, 2009. "Idiosyncratic risk and the cross-section of expected stock returns," Journal of Financial Economics, Elsevier, vol. 91(1), pages 24-37, January.
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