Recent literature on biofuels has questioned whether biofuels policies are likely to reduce the negative effects of climate change. In this paper we make two contributions to the literature. First, we study the market effects of a renewable fuel standard in a dynamic model taking into account...

This paper addresses the timing and interdependence between innovation and environmental policy in a model of research and development (Ramp;D). On a first-best path the environmental tax is set at the Pigouvian level, independent of innovation policy. With infinite patent lifetime, the Ramp;D...

This paper addresses the impact of endogenous technology through research and development (Ramp;D) and learning by doing (LbD) on the timing of environmental policy. We develop two models, the first with Ramp;D and the second with LbD. We study the interaction between environmental taxes and...

For sufficiently low abatement costs many countries might undertake significant emission reductions even without any international agreement on emission reductions. We consider a situation where a coalition of countries does not cooperate on emission reductions but cooperates on the development...

We study an international climate agreement that assigns emission quotas to each participating country. Unlike the simplest models in the literature, we assume that abatement costs are affected by R&D activities undertaken in all firms in all countries, i.e. abatement technologies are...