Mastromarco, Camilla; Simar, Léopold; Wilson, Paul W. - In: The Palgrave handbook of economic performance analysis, (pp. 301-382). 2019
A rich literature on the analysis of efficiency in production has developed since pioneering work of Tjalling Koopmans … some shape constraints, in multiple dimensions. New results that enable inference about mean efficiency as well as tests of … convexity, returns to scale, differences in mean efficiency and the separability condition described by Simar and Wilson …