Previous literature has shown that competition among regional governments may lead to inefficiently low levels of capital taxation, because governments do not take account of the external benefits of capital flight to other regions. However, the fiscal distortion is smaller the more elastic the...

Economists have long advocated congestion pricing as an efficient way of allocating scarce roadway capacity. However, with a few exceptions, congestion tolls are rarely used in practice and strongly opposed by the public and elected officials. Although high implementation costs and privacy...

This paper uses analytical and numerical models to illustrate how the presence of other distortions within the transport system changes the overall welfare effect of a congestion tax. These other distortions include a transit fare subsidy, congestion on competing (unpriced) routes, accident...

This paper derives and implements formulas for the welfare effects of differentiated and uniform mileage taxes, gasoline taxes, and per mile insurance premiums, for reducing the external costs of passenger vehicle accidents. The model distinguishes three driver groups and five vehicle groups,...

This paper explores the interactions between taxes on work-related traffic congestion and pre-existing distortionary taxes in the labor market. A congestion tax raises the overall costs of commuting to work and discourages labor force participation at the margin, when revenues are returned in...

This paper discusses how carbon abatement policies interact with the tax system, and how these interactions affect the overall costs of carbon controls. We provide formulas for adjusting cost estimates of auctioned and grandfathered carbon emissions from partial equilibrium energy models into...

This paper develops an analytical framework for assessing the second-best optimal level of gasoline taxation taking into account unpriced pollution, congestion, and accident externalities, and interactions with the broader fiscal system. We provide calculations of the optimal taxes for the US...

This paper compares the efficiency of a single lane toll, a congestion tax applied uniformly across freeway lanes, a gasoline tax, and a transit fare subsidy at reducing traffic congestion. The model incorporates a variety of conditions required to reach an efficient outcome. These include...