. . . . . "-1.20487E0"^^ . "7.8E1"^^ . "2.21264E-2"^^ . "1.68426E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/anonymityManipul" . "D. Semmann" . "H.-J. Krambeck" . "J. Marotzke" . "M. Milinski" . "2006-03-01"^^ . . . "156"^^ . "8.14E-1"^^ . "156"^^ . "4.07E-1"^^ . "7.01E-1"^^ . . . . "6"^^ . . "3"^^ . . "2005"^^ . "Published Article" . "Public Goods Game" . "Lab" . "Partner" . "Repeated" . . "2020-12-17T00:08:42.807Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .