Viewing individual contributions as investments in emission reductionwe rely on the familiar linear public goods-game to set global reductiontargets which, if missed, imply that all payoffs are destroyed witha certain probability. Regulation by milestones does not only impose afinal reduction...

This paper presents experimental evidence that contributions to a public good can bepath-dependent for a limited time span. We study a repeated linear public-good gamewith punishment opportunities. Our data shows that subjects who had experienced ahigher marginal return on public-good...

Previous research indicates that risky and uncertain marginal returnsfrom the public good significantly lower contributions. This paper presentsexperimental results illustrating that the effects of risk and uncertainty dependon the employed parameterization. Specifically, if the value of the...

We examine the effects of leading by example in voluntary contributionexperiments. Leadership is implemented by letting one group membercontribute to the public good before followers do. Such leadershipincreases contributions in comparison to the standard voluntary contributionmechanism,...

We consider a society composed of two regions. Each of them pro-vides a public good whose benefits reach beyond local boundaries.In case of decentralization, taxes collected by members of a regionare spent only on that region's public good. In case of centralization, tax receipts from the two...

We conducted a laboratory study with a public goods game in which contributions are notsubmitted all at once but incrementally as coordinated in real time by a clock. Individualspress a button as soon as the clock equals their willingness to contribute. This publicgoods institution exploits the...

This paper studies the effect of introducing costly partner selection for the voluntary contribution to a public good. Subjects participate in six sequences of five rounds of a twoperson public good game in partner design. At the end of each sequence, subjects can select a new partner out of six...

We show in a public goods experiment on three continents that conditional cooperation is a universal behavioral regularity. Yet, the number of conditional cooperators and the extent of conditional cooperation are much higher in the U.S.A. than anywhere else. -- conditional cooperation ; public...