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 the difficulty of monitoring, and even more so of enforcing, International Environmental Agreements, it is surprising that they are signed and implemented. This paper offers a theoretical model, which addresses this issue. The focus is on informational and coordination problems. A country...

This paper examines to what extent incomplete compliance of environmental regulation mitigates the distortions caused by pre-existing labour taxes. We study the relative cost efficiency of three market-based instruments: emission taxes, tradable permits and output taxes. In a first-best setting...