General Equilibrium Impacts of a Federal Clean Energy Standard

Economists have tended to view emissions pricing (e.g., cap and trade or a carbon tax) as the most cost-effective approach to reducing greenhouse gas emissions. This paper offers a different view. Employing analytical and numerically solved general equilibrium models, it provides plausible conditions under which a more conventional form of regulation-namely, the use of a clean energy standard (CES)-is more cost-effective. The models reveal that the CES distorts factor markets less because it is a smaller implicit tax on factors of production. This advantage more than offsets the disadvantages of the CES when minor emissions reductions are involved.