. . . . . "1.24668E0"^^ . "1.15E2"^^ . "5.3966E-2"^^ . "2.16626E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/intergroupComp" . "Mikael Puurtinen" . "Stephen Heap" . "Tapio Mappes" . "2015-05-01:00"^^ . . . "240"^^ . "8.46E0"^^ . "240"^^ . "4.23E-1"^^ . "4.889E0"^^ . . . . . "4"^^ . "5.0E-1"^^ . . "21"^^ . . "2014"^^ . "Published Article" . "Public Goods Game" . "Lab" . "Monetary" . "Stranger" . "Repeated" . . "2020-12-17T00:17:04.551Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .