We review what is known about the economic efficiency of fuel taxes relative to efficiency standards aimed at mitigating environmental externalities from automobiles. We present a simplified model of car choice that allows us to emphasize the relationships between fuel economy, other car...

This paper discusses fuel economy regulations in the United States and other countries. We first describe how these programs affect the automobile market, including their impacts on fuel use and other dimensions of the vehicle fleet. We then review different methodologies for assessing the costs...