Bah humbug: Unexpected Christmas cards and the reciprocity norm.

Imported: 04 May '16 | Published: 17 Dec '15

Brian P BP Meier

The Journal of social psychology

Abstract: The reciprocity norm refers to the expectation that people will help those who helped them. A well-known study revealed that the norm is strong with Christmas cards, with 20% of people reciprocating a Christmas card received from a stranger. I attempted to conceptually replicate and extend this effect. In Study 1, 755 participants received a Christmas card supposedly from a more- versus less-similar stranger. The reciprocation rate was unexpectedly low (2%), which did not allow for a... Read More

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