Erik Johnson

Affiliate-Former Emp Research

Member Of:
  • School of Economics
Fax Number:
Office Location:
Old CE Building, Room 219


Erik Johnson, PhD, is an Assistant Professor in Georgia Tech’s School of Economics.  Dr. Johnson earned his BA in mathematics and economics from St. Olaf College and his PhD in public policy and economics from the University of Michigan.  His research and teaching interests include environmental and energy economics, public economics, and applied microeconometrics.  His recent research has empirically examined environmental consequences of the structure of electricity markets, how integrating renewable electricity into the electricity grid effects environmental and market outcomes, and how regulatory structure effects air pollution.

  • Ph.D., University of Michigan
  • M.A., University of Michigan
  • B.A., St. Olaf College
Research Fields:
  • Energy Economics
  • Environmental Economics
  • Industrial Organization
  • Public Economics
Courses Taught:
  • ECON-2250: Statistics for Economist
  • ECON-3300: Intl Energy Markets
  • ECON-4440: Economics of Environment
  • ECON-6140: Probability & Statistics
  • ECON-7103: Environmental Econ II

Selected Publications

Journal Articles

  • Teaching an Old Dog New Tricks: Firm Learning from Environmental Regulation
  • The Cost of Carbon Dioxide Abatement from State Renewable Portfolio Standards

    Renewable portfolio standards (RPSs) have become a popular tool for state governments to promote renewable electricity generation and to decrease carbon dioxide emissions within a state or region. Renewable portfolio standards are a policy tool likely to persist for many decades due to the long term goals of many state RPSs and the likely creation of a federal RPS alongside any comprehensive climate change bill. Even though RPSs have become a popular policy tool, there is little empirical evidence about their costs. Using the temporal and regional variation in RPS requirements, I estimate the long-run price elasticity of supply of renewable electricity generation to be 2.67 (95% CI of 1.74, 3.60). Using my preferred elasticity estimate, I calculate the marginal cost of abatement from RPSs is at least $11 per ton of CO2 compared to a marginal cost of abatement of $3 per ton in the Regional Greenhouse Gas Initiative.

    View All Details about The Cost of Carbon Dioxide Abatement from State Renewable Portfolio Standards


Other Publications