The burgeoning literature on the use of sanctions to support the provision of public goods has largely neglected the use of formal or centralized sanctions. We let subjects playing a linear public goods game vote on the parameters of a formal sanction scheme capable of either resolving or exacerbating the free-rider problem, depending on parameter settings. Most groups quickly learned to choose parameters inducing efficient outcomes. We find that cooperative orientation, political attitude, gender and intelligence have a small but sometimes significant influence on voting.
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