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.

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