Ahmad M and B Bravo-Ureta (1996). “Technical Efficiency Measures for Dairy Farms Using Panel Data: A Comparison of Alternative Model Specifications.” JPA 7(4): 399-415.
Ahmad M and B Bravo-Ureta (1996). “Technical Efficiency Measures for Dairy Farms Using Panel Data: A Comparison of Alternative Model Specifications.” JPA 7(4): 399-415.