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Working with Duke Ph.D. student Amy Dalton, Chartrand and Fitzsimons have demonstrated that some people will act in ways that are not to their own benefit simply because they wish to avoid doing what other people want them to. Psychologists call this reactance: a person's tendency to resist social influences that they perceive as threats to their autonomy.

http://www.dukenews.duke.edu/2007/02/charfitz.html

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