the.com/reciprocity
The invisible debt every favor secretly installs in someone else's conscience.
means The practice of exchanging things—favors, kindness, advantages—with others for mutual benefit, where one gesture is answered in kind.
from From Latin reciprocus, meaning 'moving backward and forward, returning the same way.' The word is thought to be built from re- ('back') and pro- ('forward'), capturing the image of a tide that goes out and comes back, or a motion that retraces its own path. English borrowed it through the 1500s as 'reciprocal,' with 'reciprocity' following close behind—naming the back-and-forth that ties two parties together.
- hardwired
- Free samples measurably boost sales through obligation, not taste
- global glue
- Every known human culture practices some form of gift-return
- name origin
- From Latin meaning back-and-forth, like a tide
- dark side
- Bribes work by hijacking this exact instinct
- animal version
- Vampire bats share blood with non-relatives who reciprocate
lend-lease act — us provided 50 billion in military aid to allies in wwii expecting future cooperation, 1941-1945
prisoner's dilemma tournament — axelrod's 1984 computer simulation showed 'tit-for-tat' reciprocity strategy beat all others