. . . . . "3.93792E-1"^^ . "4.2E2"^^ . "1.19889E-2"^^ . "5.3428E-3"^^ . "https://data.cooperationdatabank.org/vocab/prop/gender" . "https://data.cooperationdatabank.org/vocab/prop/heterogeneousGender" . "Albert M. Chammah" . "Anatol Rapoport" . "1965-01-01"^^ . . . "5.0E-1"^^ . "420"^^ . "420"^^ . "4.73333E-1"^^ . . . . . "2"^^ . . "2"^^ . . "1964"^^ . "Published Article" . "Prisoner's Dilemma Game" . "Lab" . "Monetary" . "Partner" . "Repeated" . . "2020-12-17T00:18:16.182Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .