Regulatory and environmental effects on public transit efficiency: a mixed DEA-SFA approach |
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| Authors: | Beniamina Buzzo Margari Fabrizio Erbetta Carmelo Petraglia Massimiliano Piacenza |
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| Affiliation: | (1) “Vilfredo Pareto” Graduate School of Economics and HERMES, University of Torino, Collegio Carlo Alberto, Via Real Collegio 30, Moncalieri, TO, 10024, Italy;(2) Faculty of Economics, Ceris-CNR and HERMES, University of Piemonte Orientale “Amedeo Avogadro”, Via Perrone 18, Novara, NO, 28100, Italy;(3) Department of Economics, University of Napoli “Federico II”, Via Cinthia (Monte S. Angelo), Napoli, NA, 80126, Italy;(4) Ceris-CNR and HERMES, Italian National Research Council, Collegio Carlo Alberto, Via Real Collegio 30, Moncalieri, TO, 10024, Italy |
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| Abstract: | This paper assesses the impact of regulatory and environmental factors and statistical noise on the efficiency of public transit systems within a DEA-based framework. Using a panel of Italian companies, we implement a DEA-SFA mixed approach based on [H.O. Fried et al. (2002) Journal of Productivity Analysis, 17(1–2), 157–174] to decompose DEA inefficiency measures into three components: exogenous effects, managerial inefficiency and stochastic events. Besides providing evidence on the determinants of input-specific efficiency differentials across companies, the results point out that managerial skills play a minor role, and emphasize the relevance of regulatory policies aimed at replacing cost-plus subsidization with high-powered incentive contracts as well as improving environmental conditions of public transit networks. |
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| Keywords: | Public transit systemsm Regulation Environmental factors Managerial skills Frontier analysis (DEA, SFA) |
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