The objective of this paper is to analyze the impact of regulatory and environmental conditions on technical efficiency of European railways. Using a panel data set of 31 railway firms from 22 European countries from 1994 to 2005, a multioutput distance function model, including regulatory and...

Several U.S. states have attempted to use of legal liability imposed on greenhouse gas emitters as a public policy instrument for climate change. This brief comment considers the desirability of this approach, focusing on three possible roles for climate change liability: as a source of...