Robert Trivers' theory of self-deception, originally proposed in 2 sentences in a foreword to The Selfish Gene, is among the deepest ideas in psychology, but it's difficult to test. Here's an ingenious attempt, just published in Nature Human Behaviour
New paper in supporting the hypothesis (a la , , ) that overestimating one’s ability functions to persuade others to increase their valuation of self See also forthcoming work from & me
Why are people so often overconfident? Schwardmann and van der Weele show that people self-deceive into higher confidence if they have the opportunity to persuade others for profit and that higher confidence aides persuasion
Some evidence for Robert Trivers' ( ) bold hypothesis that self-deception is socially strategic, enabling us to better deceive others
Self-deception works to deceive others (will try to get you full paper)
Another study indicating that fooling ourselves might help to fool others
was right: We deceive ourselves to better deceive others.
people may be overconfident in their own abilities in order to deceive themselves into more effective persuasion or deception of others #SocSciResearch