Fuentes HJ, E Grifell-Tatje and S Perelman (2001). “A Parametric Distance Function Approach for Malmquist Productivity Index Estimation.” JPA 15(2): 79-94.
Fuentes HJ, E Grifell-Tatje and S Perelman (2001). “A Parametric Distance Function Approach for Malmquist Productivity Index Estimation.” JPA 15(2): 79-94.