What the study found
The study found evidence that a differentiated tax policy for low-carbon cars was associated with distributional injustice, meaning an uneven distribution of welfare across consumers, producers, and the environment. The authors report that manufacturers increased markups on low-carbon vehicles, consumer surplus fell, and emissions declined only slightly.
Why the authors say this matters
The authors say these findings matter because policies meant to support a transition to a low-carbon economy may not produce a just transition when car manufacturers have market power. The study suggests that market power may have limited the policy's intended effects.
What the researchers tested
The researchers compared market outcomes under a differentiated vehicle tax policy with a no-policy counterfactual, meaning a scenario where the policy was absent. They examined how the policy affected consumer surplus, manufacturers' markups, affordability of low-carbon vehicles, and emissions.
What worked and what didn't
Under the policy, manufacturers captured substantial benefits by raising markups on low-carbon vehicles. Affordability did not improve as planned, consumer surplus declined, and emissions decreased only marginally. The authors also suggest reinstating a uniform vehicle tax alongside sales requirements for low-carbon vehicles imposed on manufacturers.
What to keep in mind
The summary provided does not describe detailed limitations beyond the comparison with a no-policy counterfactual. The findings are specific to the policy and market setting studied, and the abstract does not provide additional scope constraints.
Key points
- Differentiated vehicle taxes were associated with distributional injustice.
- Manufacturers increased markups on low-carbon vehicles.
- Consumer surplus declined under the policy.
- Affordability of low-carbon vehicles did not improve as planned.
- Emissions decreased only marginally.
Disclosure
- Research title:
- Low-carbon vehicle taxes were linked to distributional injustice
- Authors:
- Ofir D. Rubin, Stav Rosenzweig, Yanai Ankaoua, Aviv Steren, Ziv Bar‐Nahum
- Institutions:
- Ben-Gurion University of the Negev, Ben-Gurion University of the Negev, Ben-Gurion University of the Negev, Ben-Gurion University of the Negev, Hebrew University of Jerusalem
- Publication date:
- 2026-02-24
- OpenAlex record:
- View
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