Wagenvoort, Rien; Schure, Paul - Economics Department, European Investment Bank (EIB) - 1999
The traditional econometric techniques for frontier models, namely the Stochastic Frontier Approach (SFA), the Thick Frontier Approach (TFA) and the Distribution Free Approach (DFA) have in common that they depend on a priori assumptions that are, whether feasible or not, difficult to test. This...