Shelling (1960) among others have argued that contributions to public goods may be larger if people spread their contributions and give one small contribution at a time. Examining a threshold public good environment, Marx and Matthews (2000) show that multiple rounds may secure a provision level...

We explore the effect of fixed versus dynamic group membership on public good provision. In a novel experimental design, we modify the traditional voluntary contribution mechanism (VCM) by periodically replacing old members of a group with new members over time. Under this dynamic, overlapping...

We report on an experiment comparing two institutions governing bargaining over public good allocations. In our setting, two parties bargain over how to allocate a fixed endowment between a public good and two private accounts, one for each party. Parties attach either high or low weight to the...