Normative critique of instrumental rationality 1: A public good interaction Group of N anonymous persons Each is given $10 Then, each is given two options  Option 1: Keep the $10  Option 2: Contribute it to a common purse Once all N persons have chosen, the contents of the purse are doubled (by the experimenter) and shared Social optimum: All contribute and get $20 each Nash equilibrium: No rational agent will contribute.
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