de Borger, Bruno; Kerstens, Kristiaan; Staat, Matthias - In: Research in Transportation Economics 23 (2008) 1, pp. 53-64
This paper explores a selection of recently proposed bootstrapping techniques to estimate non-parametric convex (DEA) cost frontiers and efficiency scores for transit firms. Using a sample of Norwegian bus operators, the key results can be summarized as follows: (i) the bias implied by...