. . . . . "2.43595E-1"^^ . "8.0E1"^^ . "6.7849E-2"^^ . "2.91224E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/symmetric" . "J.P. Sheposh" . "P.S. Gallo" . "1973-06-01:00"^^ . . . "0.0E0"^^ . "80"^^ . "80"^^ . "3.51413E-1"^^ . . . . . "2"^^ . "6.0E-1"^^ . "7.5E-1"^^ . . "2"^^ . . "1973"^^ . "Published Article" . "Prisoner's Dilemma Game" . "Lab" . "Monetary" . "Partner" . "Repeated" . . "2020-12-17T00:23:40.552Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .