Powerful people are better liars — but which way does the causality run?
Dana Carney divided research subjects into two groups: bosses and employees. Bosses got larger offices and more power; they were asked, for instance, to assign employees’ salaries. Half of all subjects were instructed by a computer to steal a $100 bill. If they could convince an interviewer they hadn’t taken it, they could keep it. The other subjects were questioned as well. In the interviews, lying bosses displayed fewer involuntary signs of dishonesty and stress. On all measures, liars with power were hard to distinguish from subjects telling the truth.
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We measured subjects on five variables that indicate lying — involuntary shoulder shrugs, accelerated speech, the level of the stress hormone cortisol in their saliva, cognitive impairment, and emotional distress. Only the low-power liars could be “seen” as lying; the readings for the liars with power were essentially the same as those for truth tellers on all five variables. People with power lied more easily and effectively, which is troubling.
(Hat tip to Robin Hanson.)