The voluntary provision of a pure public good is studied in the presence of an anonymous external donor. New data generated using experimental procedures employing both extra-credit and cash incentives, as well as asynchronous access to real-time decision rounds lasting several days, are...

Laboratory experiments are used to study the voluntary provision of a pure public good in the presence of an anonymous external donor. The external funds are used in two different settings, lump-sum matching and one-to-one matching, to examine how allocations to the public good are affected. The...

This paper examines binding multi-round commitments (MRCs) to the group account in a repeated voluntary contributions mechanism (VCM) game. Before each five-round interval, subjects in a four-person group are given the option to commit a portion of their endowments to the group account for each...