Evidence from experiments in which real people play the ultimatum game supports the idea that people care about fairness as well as about maximization of their personal wealth.

Question

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In ultimatum game experiments, proposers often offer fair splits (e.g., 50/50), and responders frequently reject unfair offers (e.g., 20/80), even at a cost to themselves, indicating that people value fairness alongside personal wealth maximization.

Evidence from Experiments in Which Real People Play the Ultimatum