Starting in January 2025, New York City became the first city in the United States to introduce a fee for vehicles entering its central business district (CBD). Using Google Maps Traffic Trends, we show that the policy increased speeds in the CBD, had spillovers onto non-CBD roads, and reduced...

With the increase in fuel economy of the personal transportation fleet along with the increased penetration of hybrid and electric vehicles, federal motor vehicle fuel excise tax revenue has been steadily declining. This has led to calls for finding a replacement for this tax. One option is to...

Many transportation policies indirectly affect vehicle travel and resulting externalities by inducing changes in vehicle scrappage rates. We leverage the staggered removal of state-level safety inspection programs across the United States within an instrumental variables (IV) framework to...

More stringent fuel economy standards and increased market penetration of electric vehicles (EVs) present challenges to federal policy makers who historically have relied on motor vehicle fuel excise taxes to fund highway projects. This paper considers the distributional implications of a...

Pigouvian taxes and user fees can address environmental externalities and efficiently fund transportation infrastructure, but these policies may place burdens on poorer households. This paper presents new evidence on the distributional consequences of the gasoline tax, bus and light rail charges...

We use a field experiment to measure the effectiveness of financial incentives and moral suasion "nudges" to shift the timing of electric vehicle (EV) charging. We find EV owners respond strongly to financial incentives, while nudges have no statistically discernible effect. When financial...

Designing public transport networks involves tradeoffs between extensive geographic coverage, frequent service on each route, and relying on interconnections as opposed to direct service. These choices, in turn, depend on individual preferences for waiting times, travel times, and transfers. We...

In 2018, California voters rejected Proposition 6, a ballot initiative that sought to repeal state gasoline taxes and vehicle fees enacted as part of the 2017 Road Repair and Accountability Act. We study the relationship between support for the proposition, political ideology and the economic...