← Search

American Economic Review Vol. 116 No. 9 2026

The Environmental Bias of Corporate Income Taxation

Luigi Iovino1; Thorsten Martin2; Julien Sauvagnat1

1 Bocconi University (email: ) · 2 Frankfurt School of Finance and Management (email: )

Abstract

We study the relationship between corporate income taxation and carbon dioxide (CO 2 ) emissions in the United States. We show CO 2 -intensive firms benefit more from the tax advantage of debt and pay lower income taxes on their capital income. Building on these new facts, we provide evidence that a cut in the corporate income tax rate leads to a larger expansion of clean firms. We develop a multisector general equilibrium model that accounts for our evidence and quantify the impact of corporate tax reforms on aggregate emissions. A policy that eliminates the tax advantage of debt could reduce aggregate emissions without affecting GDP.

DOI
10.1257/aer.20241765
Volume
116
Issue
9
Pages
3510-3551
Language
en
Sources
crossref openalex

Cite