derives max-min, max-max and min-max regret policies to deal with this particular form of climate (model) uncertainty and with …

of IEA formation when countries are risk neutral and another that explores the implications of uncertainty and risk …This paper analyses the formation of international environmental agreements (IEAs) under uncertainty, focusing on the … role of learning and risk aversion. It bridges two strands of literature: one focused on the role learning for the success …

unaffected by uncertainty about the impact of crossing the threshold but that collective action collapses if the location of the … uncertainty. Inside the dividing line, where uncertainty is small, collective action should succeed. Outside the dividing line …, where uncertainty is large, collective action should fail. We test this prediction in the experimental lab. Our results …

, sustaining only modest cuts in emissions. These results are unaffected by uncertainty about the impact of catastrophe. By … contrast, uncertainty about the catastrophic threshold typically causes coordination to collapse. Whether the probability …