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Title
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Transit costs and cost efficiency: bootstrapping non-parametric frontiers
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Author
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Abstract
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| 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 summarised as follows: (i) the bias implied by uncorrected cost efficiency measures is numerically important (close to 25%), (ii) the bootstrapped-based test rejects the constant returns to scale hypothesis (iii) explaining patterns of efficiency scores using a two-stage bootstrapping approach detects only one significant covariate, in contrast to earlier results highlighting, e.g., the positive impact of high-powered contract types. Finally, comparing the average inefficiency obtained for the Norwegian data set with an analogous estimate for a smaller French sample illustrates how the estimated differences in average efficiency almost disappear once sample size differences are accounted for. |
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Language
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English
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Source (series)
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Research paper / UA, Faculty of Applied Economics , 2008:12
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Publication
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Antwerp
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UA
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2008
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Volume/pages
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46 p.
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Full text (open access)
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