Discussion Paper

What Is a Carbon Tariff and Why Is the EU Imposing One?


Abstract: The European Union has been an early adopter of carbon policies, with the introduction of the EU Emissions Trading System (ETS) in 2005. This scheme sets a common price for carbon and is applied to the most polluting manufacturing sectors. By increasing the cost of emissions-intensive production, the system incentivizes firms to decrease their use of fossil fuels. However, as we show in a companion post, the policy’s impact was moderated by firms increasing their reliance on high-emissions imports. To eliminate this workaround, the EU will expand the ETS to imports in 2026, through the Carbon Border Adjustment Mechanism (CBAM). The CBAM will essentially put a tariff on imported goods based on their carbon content. Our recent work provides a quantitative analysis of how the ETS and CBAM affect firms’ supply choice decisions, and the resulting changes in domestic prices and emissions.

JEL Classification: F14; F18; F64; H23; Q56;

https://doi.org/10.59576/lse.20260107b

Access Documents

Authors

Bibliographic Information

Provider: Federal Reserve Bank of New York

Part of Series: Liberty Street Economics

Publication Date: 2026-01-07

Number: 20260107b