De Witte, Kristof; Dijkgraaf, Elbert - 2007
association started with a voluntary benchmarking aimed to increase the efficiency and effectiveness of the sector. Secondly … efficiency of these two evolutions. In particular, we adapt Free Disposal Hull (FDH) to estimate robust and conditional non …-oriented efficiency estimates. Parametric COLS (Fourier) tests show the robustness of the model with respect to the specification and its …