Lim, Siew Hoon; Lovell, C. A. Knox - In: Journal of Transport Economics and Policy 42 (2008) 1, pp. 155-188
This paper examines how productivity changes contribute to short-run cost variations over time and across railroads. Using an unbalanced panel of US Class I railroad data for the period 1996-2003, decomposition models were used to attribute intertemporal and multilateral cost variations to their...