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Technology and efficiency in a panel of Italian dairy farms : a SGM restricted cost function approach
Pierani, Pierpaolo, (1999)
Estimation of technical efficiency and technical progress free from farm-specific effects : an application to Swedish dairy farms
Kumbhakar, Subal, (1991)
Technical efficiency and technological gap of New Zealand dairy farms : a stochastic meta-frontier model
Jiang, Nan, (2015)