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IQ, trading behavior, and performance

  • Grinblatt, Mark
  • Keloharju, Matti
  • Linnainmaa, Juhani T.

We analyze whether IQ influences trading behavior, performance, and transaction costs. The analysis combines equity return, trade, and limit order book data with two decades of scores from an intelligence (IQ) test administered to nearly every Finnish male of draft age. Controlling for a variety of factors, we find that high-IQ investors are less subject to the disposition effect, more aggressive about tax-loss trading, and more likely to supply liquidity when stocks experience a one-month high. High-IQ investors also exhibit superior market timing, stock-picking skill, and trade execution.

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Article provided by Elsevier in its journal Journal of Financial Economics.

Volume (Year): 104 (2012)
Issue (Month): 2 ()
Pages: 339-362

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Handle: RePEc:eee:jfinec:v:104:y:2012:i:2:p:339-362
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505576

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