Fairness evolved as a psychological device because outside market options constrain benefit distribution.

Evidence

In this market, individuals should never consent to enter into an interaction in which the marginal benefit of their investment is lower than the average benefit they could receive elsewhere. If two individuals have the same average outside opportunities, they should both receive the same marginal benefit from each resource unit they invest in a joint cooperative venture. In the long run, we argue, such an evolutionary process should have led to the selection of a sense of fairness, a psychological device to treat each other in a fair way. — Nicolas Baumard, A mutualistic approach to morality, 201

Categorization

  • XREF: Directly extends the reader’s stated reading purpose — the fumi-e ritual as a tool to destroy partner-choice/market options, and Baumard et al.’s mutualistic morality. Also connects to Norenzayan’s Big God mechanism as a different enforcement path for the same cooperative end. — connects to: Moral fairness may itself have been shaped by natural selection. — Nicolas Baumard, A mutualistic approach to morality: The…, 12; Sensitivity to merit and equity emerges early and universally in children — Nicolas Baumard, A mutualistic approach to morality: The…, 657; Fairness emerges when partner choice links each interaction to outside opportunities. — Nicolas Baumard, A mutualistic approach to morality: The…, 45 (+7 more)
  • ADDENDUM: Supports the ‘On Sacrifice’ article’s theme of rituals designed to bind or disrupt social solidarity — here the market logic that undercuts a ritual’s coercive power.

Broader Connections