Preprint

Unobserved heterogeneity and international benchmarking in public transport

  • Cullmann, Astrid DIW Berlin (German Institute for Economic Research), 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
    2009

34 p

English We analyze the technical efficiency of German and Swiss urban public transport companies by means of SFA. In transport networks we might face different network structures or complexities, not observed, but influencing the production process. The unobserved factors are typically modeled as separable factors. However, we argue that the entire production process is organized around different network structures. Therefore, they are inevitably non-separable from the observed inputs and outputs. The adopted econometric model is a random coefficient stochastic frontier model. We estimate an input distance function for the years 1991 to 2006. The results underline the presence of unobserved non-separable factors.
Language
  • English
Classification
Economics
License
License undefined
Identifiers
  • RERO DOC 12349
Persistent URL
https://susi.usi.ch/usi/documents/317963
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