Robert Krol
    Robert Krol

    California State University, Northridge

    College of Business and Economics
    Professor of Economics

    CGO Research
    Does Expanding Highway Capacity Solve Urban Congestion Problems?

    This Research in Focus piece explains why highway expansion has, at best, only a limited impact on congestion. It begins by reviewing the existing literature on this topic and concludes with policy recommendations that explore better ways to address congestion, such as variable pricing.

    Can We Build Our Way Out of Urban Traffic Congestion?

    This research examines the costs of expanding highway capacity as well and how the unintended consequences of doing so may actually increase demand.


    Podcast: Robert Krol Discusses Highway Expansion, Tolls, and Congestion

    Dr. Robert Krol of California State University was a guest on Economics Detective Radio to discuss the policy paper he wrote for The Center for Growth and Opportunity.

    Robert Krol



    Robert Krol is a professor of economics at California State University, Northridge; a Senior Affiliated Scholar for the Mercatus Center at George Mason University; and a member of the Heartland Institute’s Board of Policy Advisors.  He also worked as an economist at Security Pacific National Bank in Los Angeles and the Milken Institute in Santa Monica, California.  He received his PhD in economics from Southern Illinois University, Carbondale in 1982.

    His research focuses on infrastructure issues, international economics, and regional economics.  His research has been published in leading economics journals, including the Review of Economics and Statistics, Journal of Econometrics, Journal of Urban Economics, Regional Science and Urban Economics, International Journal of Forecasting, International Finance, and the International Journal of Money and Finance.  He has published policy papers for the Cato Institute and Mercatus Center.  He has also published opinion articles in the Los Angeles Times, the Washington Times, the Cleveland Plain Dealer, Investor’s Business Daily, U.S. News and World report, The Hill, Real Clear Policy, and the Houston Chronicle.