Unobserved heterogeneity and efficiency measurement in public transport
- Cullmann, Astrid DIW Berlin (German Institute for Economic Research), Department of Innovation, Manufacturing, Service, Berlin, Germany
- Farsi, Mehdi Istituto microeconomia e economia pubblica (MecoP), Facoltà di scienze economiche, Università della Svizzera italiana, Svizzera
- Filippini, Massimo Istituto microeconomia e economia pubblica (MecoP), Facoltà di scienze economiche, Università della Svizzera italiana, Svizzera
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2010
Published in:
- Journal of transport economics and policy. - University of Bath. - 2012, vol. 46, no. 1, p. 51-66
English
Efficiency measurement in public transport requires an adequate account of unobserved network characteristics that are typically modelled as factors separable from the production process. This paper proposes a panel data model that allows for non-separable firm-specific heterogeneity in an input distance function. The proposed model is applied to a sample of German and Swiss urban transit companies operating from 1991 to 2006. The results underline the presence of non-separable unobserved factors and their effects on technological characteristics such as returns to scale. Moreover, the data suggest that the effect of time-invariant heterogeneity could be significantly greater than technical inefficiency.
- Language
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- English
- Classification
- Economics
- Other electronic version
- License
- License undefined
- Identifiers
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- RERO DOC 28593
- Persistent URL
- https://susi.usi.ch/usi/documents/318346
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