Add BrightSurf on Google Email

Older adults across the globe are more willing to help others, but mostly those in the same country

A global study of 46,500 people aged 18-99 found that older adults are more willing to donate to charities within their own country, but less likely to do so internationally. This preference for 'in-group' behavior remains consistent even after accounting for wealth, pandemic severity, and perceived risk.

SourceUniversity of Birmingham·JournalNature Aging·TypeExperimental study·DateOct 11, 2021

The coevolution of parochial altruism and war

SFI researchers Samuel Bowles and Jung-Kyoo Choi suggest that altruistic behavior towards fellow group members may have evolved together with hostility towards outsiders. The study found that the combination of these traits enabled survival, as they promoted group conflict, which in turn contributed to their success.

SourceSanta Fe Institute·JournalScience·DateOct 26, 2007