Behavioral and Brain Sciences

Open Peer Commentary

(Not so) positive illusions

Justin Krugera1, Steven Chana2 and Neal Roesea3

a1 Stern School of Business, New York University, New York, NY 10012. [email protected] http://w4.stern.nyu.edu/faculty/facultyindex.cgi?id=370

a2 Department of Marketing, Stern School of Business, New York University, New York, NY 10012. [email protected] http://w4.stern.nyu.edu/marketing/research.cfm?doc_id=872

a3 Kellogg School of Management, Northwestern University, Evanston, IL 60208. [email protected] http://www.kellogg.northwestern.edu/Faculty/Directory/Roese_Neal.aspx

Abstract

We question a central premise upon which the target article is based. Namely, we point out that the evidence for “positive illusions” is in fact quite mixed. As such, the question of whether positive illusions are adaptive from an evolutionary standpoint may be premature in light of the fact that their very existence may be an illusion.

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