In a laboratory experiment, the voluntary provision of public goods is investigated when there is probabilistic uncertainty about the monetary return from production of the public good. After group members make their provision decisions, the return is drawn from an exogenously determined...

In a laboratory experiment, the voluntary provision of public goods is investigated when there is probabilistic uncertainty about the monetary return from production of the public good. After group members make their provision decisions, the return is drawn from an exogenously determined...