We hypothesize that sharing a birthday is sufficient to create a unit relationship. Two studies demonstrated that individuals cooperated more in a prisoners dilemma game when their (fictitious) opponent shared their birthday. They also reacted more negatively to betrayal and were less sensitive to relative gains for self versus other.
|Original language||English (US)|
|Number of pages||7|
|Journal||European Journal of Social Psychology|
|State||Published - Jan 1 1998|
ASJC Scopus subject areas
- Social Psychology