. . . . . "4.49227E-1"^^ . "6.0E1"^^ . "8.48932E-2"^^ . "3.7615E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/contextFrame" . . . "0.0E0"^^ . "60"^^ . "60"^^ . "4.67E-1"^^ . . . . . "2"^^ . "4.0E-1"^^ . . "2"^^ . . "1998"^^ . "Published Article" . "Prisoner's Dilemma Game" . "Lab" . "Non-monetary lottery" . "Stranger" . "One-shot" . . "2020-12-16T23:23:34.737Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .