Cherchye, L.

production efficiency price input analysis assumption model measure ficiency output function approach journal research example estimate technology application distribution sample theory result frontier data envelopment analysis section observation distance efficiency measures nonparametric cherchye error congestion technique estimation ef ficiency convexity vector electricity addition inefficiency kuosmanen information problem production assumptions uncertainty economic ficient european cost efficiency reference european journal envelopment cooper speci price information value f re efficiency estimates behavior sampling ratio fi rms production technology productivity dutch electricity sector variance netput noise-to-signal ratio study inef ficiency terms performance number power sampling error grosskopf sensitivity management efficiency measure science specification