Countries often have private information about their willingness to pay for protecting the climate system and their cost of emission reductions. We use a principal-agent model to re-examine the economic case for unilateral action by individual countries, in our case of the principal. We find...

This paper investigates how uncertainty affects the optimal intertemporal accumulation of a stock externality using CO2 emissions and the greenhouse effect as a topical pars pro toto. More precisely, the evolution of the future temperature is assumed to follow an Ito-process with the drift...