Pigovian Transport Pricing in Practice

Beat Hintermann; Beaumont Schoeman; Joseph Molloy; Thomas Götschi; Alberto Castro; Christopher Tchervenkov; Uros Tomic; Kay W. Axhausen

doi:10.1093/restud/rdag051

Pigovian Transport Pricing in Practice

Beat Hintermann¹; Beaumont Schoeman²; Joseph Molloy³; Thomas Götschi⁴; Alberto Castro⁵; Christopher Tchervenkov⁶; Uros Tomic⁷; Kay W. Axhausen⁸

¹ University of Basel · ² University of Hamburg University of Basel, Switzerland and , · ³ FAIRTIQ AG , · ⁴ University of Oregon University of Basel, Switzerland and , · ⁵ Swiss Tropical and Public Health Institute University of Basel, Switzerland and , · ⁶ Division Mobilité , Cité de Lausanne , · ⁷ Zurich School of Applied Sciences , · ⁸ ETH Zurich

Review of Economic Studies 2026 open access

Abstract We implement Pigovian transport pricing in a field experiment in urban agglomerations of Switzerland over the course of 8 weeks. Our pricing considers the external costs from climate damages, health outcomes from pollution, accidents and physical activity, and congestion. It varies across time, space, and mode of transport and is deducted from a budget provided to GPS-tracked participants. The treatment significantly reduces the external costs of transport during the course of the experiment. The main underlying mechanism is a shift away from driving towards other modes, such as public transport, walking, and cycling. Providing information about the external costs of transport alone is insufficient to change the transport behaviour for the sample majority. A time-invariant tax on CO2 and health-related externalities would capture most of the welfare gains associated with the first-best policy.

DOI: 10.1093/restud/rdag051
Language: en
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