In this paper, we explore automobile fuel efficiency policies in the presence of two externalities i) a global environmental problem; and ii) international innovation spillovers. Using a simple model with two regions, we show that both a fuel tax and a tax on vehicles based on their fuel economy...

Given that it is difficult to monitor, and even more so to enforce, International Environmental Agreements, it is surprising that they are signed and implemented. This paper offers a theoretical model, which addresses the phenomena. The focus is on informational and coordination problems--a...

A federal government tries to force local governments to implement welfare optimal tolling and investment. Welfare optimal tolling requires charging for marginal external costs. Local governments have an incentive to charge more than the marginal social cost whenever there is transit traffic. We...

A federal government tries to force local governments to implement welfare optimal tolling and investment. Welfare optimal tolling requires charging for marginal external costs. Local governments have an incentive to charge more than the marginal social cost whenever there is transit traffic. We...

This paper uses a political economy model to explain the discriminative support for some renewable technologies like photovoltaic. A two party model is used to show how subsidies for technologies that are installed by household voters can incentivise swing voters to vote for a party. It is in...

The paper challenges part of the sustainable transport literature. Sustainable transport plans often focus on reducing carbon emissions in a specific city, region or country, and this neglects two handicaps of strong unilateral action. The first is that climate is a global commons problem, so a...