This paper uses the WITCH model, a computable general equilibrium model with endogenous technological change, to explore the impact of various climate policies on energy technology choices and the costs of stabilising greenhouse gas concentrations. Current and future expected carbon prices...

This paper was prepared for the OECD-IEA Climate Change Expert Group (formerly called the Annex I Expert Group) for the purpose of providing useful and timely input on specific topics relevant to international negotiations under the United Nations Framework Convention on Climate Change (UNFCCC)....

This paper was prepared for the OECD-IEA Climate Change Expert Group (formerly called the Annex I Expert Group) for the purpose of providing useful and timely input on specific topics relevant to international negotiations under the United Nations Framework Convention on Climate Change (UNFCCC)....

Government subsidies are often used to stimulate environment-friendly investment. We find that Chinese firms reduce green investment as the uncertainty of subsidies rises. This effect is identified from weather-driven fluctuations in air pollution that lead to fluctuations in subsidy...