Gambling Preferences, Options Markets, and Volatility

  title={Gambling Preferences, Options Markets, and Volatility},
  author={Benjamin M. Blau and Tyler B. Bowles and Ryan J. Whitby},
  journal={Journal of Financial and Quantitative Analysis},
  pages={515 - 540}
Abstract This study examines whether the gambling behavior of investors affects volume and volatility in financial markets. Focusing on the options market, we find that the ratio of call option volume relative to total option volume is greatest for stocks with return distributions that resemble lotteries. Consistent with the theoretical predictions of Stein (1987), we demonstrate that gambling-motivated trading in the options market influences future spot price volatility. These results not… 
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