Eighty groups of subjects participated in a social dilemma game, where two groups
competed with each other for the provision of a binary public good. Subjects were allowed to …

Thirty‐two groups of three subjects each participated once in an intergroup public goods
game (IPG) in which two groups compete for the provision of step‐level public goods. Half of …

An experimental paradigm is proposed for investigating interpersonal conflicts under
conditions of intergroup competition. The paradigm constitutes an n-person game with …

Forty-eight groups participated once in an intergroup conflict in which two groups of equal or
unequal size competed for the provision of step-level (binary) public goods. The study …

In a public-goods game, a variant of the social dilemma, 126 subjects made choices. In an
attempt to better represent real-world communication possibilities, two conditions were …

Free riding is a paramount consideration in intergroup conflicts because the benefits
associated with such conflicts are public goods with respect to the members of a competing …

Twelve groups of 5 players each participated in a multiple-trial social dilemma game in
which each player, i, receives a possibly different monetary endowment. ei, and then …

Two experiments with 114 male undergraduates studied intergroup competition as a
structural solution to social dilemmas. In Exp 1, Ss participated in a one-shot" give-some" …

Two experiments investigated effects of communication on behavior in an 8-person
commons dilemma of group vs individual gain. A total of 593 persons recruited through …

An intriguing class of collective action problems has been largely ignored by social dilemma
researchers. Hardin (1982) observed that" It is often... the case that collective action is of …