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Strategic climate policy in global aviation: Aviation fuel taxes and efficiency standards with duopolistic aircraft producers

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  • Ovaere, Marten
  • Proost, Stef

Abstract

We develop a three-stage game with three governments, a EU-US aircraft production duopoly, and competitive airlines. The model determines the optimal combination of fossil fuel taxes and fuel efficiency standards to decarbonize the aviation sector with imperfect competition and technological spillovers, under various government cooperation levels. We find that without international cooperation, technology spillovers prevent large efficiency investments. Fuel taxes are low but exceed domestic climate damages in regions without aircraft production. Regions with domestic aircraft producers subsidize aviation when the social cost of carbon is low. Second, EU-US cooperation increases fuel efficiency, but fuel taxes are lower than without cooperation, such that carbon emission reductions are limited both with and without cooperation. Third, global cooperation yields the largest efficiency gains, but fuel taxes remain below the world climate damage. Finally, achieving net-zero emissions requires a combination of fuel efficiency, demand reduction through higher fuel taxes, and new aviation fuels.

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  • Ovaere, Marten & Proost, Stef, 2025. "Strategic climate policy in global aviation: Aviation fuel taxes and efficiency standards with duopolistic aircraft producers," Economics of Transportation, Elsevier, vol. 41(C).
    • Handle: RePEc:eee:ecotra:v:41:y:2025:i:c:s221201222500005x
    DOI: 10.1016/j.ecotra.2025.100397
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