Abstract :
[en] We estimate a factor requirement frontier for European railways using a panel data approach in which technical
efficiency is assumed to be endogencously determined. This approach has two main outcomes. On one hand,
it allows the identification of factors influencing technical efficiency, and on the other hand, it allows the estimation
of alternative efficiency indicators free of these influences. In the case under study, a particular attention
is devoted to an autonomy indicator representing the managerial freedom, with respect to public authorities, experienced
by firms, that appears to be positively correlated with technical efficiency.
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