AR_publication_marginal_social_costs_coverIn a paper co-authored with Heike Link, Chris Nash and Jeremy Shires, and published in the International Journal of Sustainable Transportation, Andrea Ricci discusses the issue of social marginal cost pricing in road transport. Two case studies were used for this analysis, and, as stated in the paper’s abstract, Ricci et al. have concluded that “in the peak period congestion costs are the most important externality of road use, and that accidents, wear and tear, and noise costs all appear to be more important than global warming.

Their recommendation is that policy makers look not just at global warming costs but also at other elements of transport externalities, which may ultimately have a greater effect on users.