Are investors really willing to agree to disagree? An experimental investigation of how disagreement and attention to disagreement affect trading behavior

Jeffrey Hales

Organizational Behavior and Human Decision Processes, 2009, vol. 108, issue 2, pages 230-241

Abstract: Using a series of laboratory markets, this paper provides evidence that a willingness to engage in speculative trade is largely driven by a failure of traders to account for information about value implicit in other traders' actions and that this behavior arises because traders construct myopic mental models that ignore the perspective of other traders. In a baseline set of markets, where traders are prompted to estimate fundamental value but are not overtly prompted to consider disagreement, I find that traders are generally insensitive to adverse selection and readily engage in suboptimal, speculative trade. Moreover, this effect does not decline across trials suggesting that market feedback alone is unlikely to correct traders' behavior. In contrast, when traders are prompted to assess disagreement over asset values or when they trade in more transparent markets, they appear less willing to "agree to disagree." These results provide insight into why investors depart from rational trading strategies and how investor psychology will influence trading behavior.

Keywords: Experimental; economics; Disagreement; Trading; volume; Adverse; selection; Myopia; Mental; models; Transparency (search for similar items in EconPapers)
Date: 2009

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Persistent link: http://EconPapers.repec.org/RePEc:eee:jobhdp:v:108:y:2009:i:2:p:230-241

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