. . . . . "9.31459E-1"^^ . "5.0E1"^^ . "1.30743E-1"^^ . "5.11357E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/sVOType" . "Kennon M. Sheldon" . "1999-01-01"^^ . . . "3.77778E-1"^^ . "90"^^ . "90"^^ . "6.97E-1"^^ . . . . . "2"^^ . "4.0E-1"^^ . . "2"^^ . . "1998"^^ . "Published Article" . "Prisoner's Dilemma Game" . "Lab" . "Hypothetical" . "Partner" . "Repeated" . . "2020-12-17T00:23:31.419Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .