Corporate Taxation and Carbon Emissions

DEPARTMENT OF ECONOMICS & DECISION SCIENCES

Speaker : Luigi Iovino

Assistant Professor at Boconni University

Room T015

Abstract :

“We study the relationship between corporate taxation and carbon emissions in the U.S. We find that dirty firms pay lower profit taxes—the opposite of what optimal taxation of negative externalities prescribes. This relationship is driven by dirty firms benefiting disproportionately more from the tax shield of debt due to their higher leverage. In turn, we show that the higher leverage of dirty firms is explained by their higher asset tangibility. We embed our estimates into a general equilibrium framework and show that eliminating the tax-advantage of debt reduces carbon emissions by about 3.9%, while aggregate output falls by roughly 2.2%. ”

(joint work with Thorsten Martin and Julien Sauvagnat)