. . . . . "-6.97798E-1"^^ . "4.8E1"^^ . "1.18562E-1"^^ . "4.96995E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/ethnicityUS" . . . "2.8E1"^^ . "1.8E1"^^ . "5.0E-1"^^ . "2.0E1"^^ . "144"^^ . "144"^^ . "6.32E-1"^^ . . . . . "2"^^ . "3.33333E-1"^^ . . "2"^^ . . "2007"^^ . "Doctoral Dissertation" . "Prisoner's Dilemma Game" . "Lab" . "Monetary" . "Stranger" . "One-shot" . . "2020-12-17T00:19:43.944Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .