Institutional Investors and Stock Market

نویسندگان

  • Xavier Gabaix
  • Parameswaran Gopikrishnan
  • Vasiliki Plerou
  • Emanuel Derman
  • Ananth Madhavan
  • Andrew Metrick
  • Lasse Pedersen
  • Thomas Philippon
  • Marc Potters
  • Jon Reuter
  • David Kang
چکیده

We present a theory of excess stock market volatility, in which market movements are due to trades by very large institutional investors in relatively illiquid markets. Such trades generate significant spikes in returns and volume, even in the absence of important news about fundamentals. We derive the optimal trading behavior of these investors, which allows us to provide a unified explanation for apparently disconnected empirical regularities in returns, trading volume and investor size.

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تاریخ انتشار 2011