substantial externality on the rest of the world. We analyze whether the threat of counter-geoengineering technologies capable of … international cooperation. Our game-theoretical model of asymmetric countries allows for a rigorous analysis of the strategic …

We study the effects of voluntary participation on cooperation in collective action problems. Voluntary participation … may foster cooperation through an entry mechanism, which leads to assortative selection of interaction partners, or an …

interaction between the observability of the cooperation of others and the absence of punishment targeted at cooperative …

cooperation through two mechanisms: an entry mechanism, which leads to assortative selection of interaction partners, or an exit …

We study the effects of voluntary participation on cooperation in collective action problems. Voluntary participation … may foster cooperation through a mechanism of assortative selection of interaction partners based on false consensus bias …

Ostracism is practiced by virtually all societies around the world as a means of enforcing cooperation and excluding … contributors are excluded but also because high contributors sustain a higher cooperation level under the exclusion institution …

can promote cooperation through a combination of sorting and opportunistic signaling, with late period defections by … remains unclear. In each of six treatments that vary the cooperation premium and the informational basis for reputation …, that with a high cooperation premium and good information, investment in reputation grows across sets of finitely …