GIJBELS, Irène; MAMMEN, Enno; PARK, Byeong U.; SIMAR, … - Center for Operations Research and Econometrics (CORE), … - 1997
A way for measuring the efficiency of enterprises is via the estimation of the so-called production frontier, which is the upper boundary of the support of the population density in the input and output space. It is reasonable to assume that the production frontier is a concave monotone...