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Drive less, drive better, or both? Behavioral adjustments to fuel price changes in Germany

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  • Alberini, Anna
  • Horvath, Marco
  • Vance, Colin

Abstract

The demand for motor fuel should decline when its price rises, but how exactly does that happen? Do people drive less, do they drive more carefully to conserve fuel, or do they do both? To answer these questions, we use data from the German Mobility Panel from 2004 to 2019, taking advantage of the fluctuations in motor fuel prices over time and across locales to see how they affect Vehicle Kilometers Traveled (VKT) and on-road fuel economy (expressed in kilometers per liter) for gasoline and diesel cars. Our reduced-form regressions show that while the VKTs driven by gasoline cars decrease when the price of gasoline rises, there is virtually no response among diesel cars. Likewise, the on-road fuel economy is largely unresponsive to fuel price changes, irrespective of the fuel type. Since the price elasticity of fuel consumption is the difference between the price elasticity of VKT and the price elasticity of the fuel economy, our results suggest that the fuel economy might be the “weakest link” of price-based policies that seek to address environmental externalities.

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  • Alberini, Anna & Horvath, Marco & Vance, Colin, 2022. "Drive less, drive better, or both? Behavioral adjustments to fuel price changes in Germany," Resource and Energy Economics, Elsevier, vol. 68(C).
    • Handle: RePEc:eee:resene:v:68:y:2022:i:c:s0928765522000094
    DOI: 10.1016/j.reseneeco.2022.101292
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    5. Pang, Jindong & An, Lan & Shen, Shulin, 2023. "Gasoline prices, traffic congestion, and carbon emissions," Resource and Energy Economics, Elsevier, vol. 75(C).
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    7. Mario Liebensteiner & Jakob Losert & Sarah Necker & Florian Neumeier & Jörg Paetzold & Sebastian Wichert, 2024. "Almost Fare Free: Impact of a Cheap Public Transport Ticket on Mobility Patterns and Infrastructure Quality," CESifo Working Paper Series 11229, CESifo.
    8. Frondel, Manuel & Thiel, Patrick & Vance, Colin, 2024. "Heterogeneous pass-through over space and time: The case of Germany's fuel tax discount," Ruhr Economic Papers 1087, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen.
    9. Alberini, Anna & Vance, Colin, 2025. "Policy forces in the German new car market: How do they affect PHEV and BEV sales?," Transportation Research Part A: Policy and Practice, Elsevier, vol. 196(C).
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    12. Andor, Mark A. & Dehos, Fabian T. & Gillingham, Kenneth T. & Hansteen, Sven & Tomberg, Lukas, 2025. "Public transport pricing: An evaluation of the 9-Euro ticket and an alternative policy proposal," Economics of Transportation, Elsevier, vol. 42(C).
    13. Alberini, Anna & Vance, Colin, 2023. "Competing forces in the German new car market: How do they affect diesel, PHEV, and BEV sales?," Ruhr Economic Papers 1047, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen.
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    Keywords

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    JEL classification:

    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming
    • R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise

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