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Estimating technical efficiency of Australian dairy farms using alternative frontier methodologies

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Technical efficiency is estimated and examined for a cross-section of Australian dairy farms using various frontier methodologies; Bayesian and Classical stochastic frontiers, and Data Envelopment Analysis. The results indicate technical inefficiency is present in the sample data. Also identified are statistical differences between the point estimates of technical efficiency generated by the various methodologies. However, the rank of farm level technical efficiency is statistically invariant to the estimation technique employed. Finally, when confidence/credible intervals of technical efficiency are compared significant overlap is found for many of the farms' intervals for all frontier methods employed. The results indicate that the choice of estimation methodology may matter, but the explanatory power of all frontier methods is significantly weaker when interval estimate of technical efficiency is examined.

Document Type: Research Article


Affiliations: 1: Applied Economics and Business Management, Department of Agricultural Science, Imperial College London, Wye Campus, Wye, Ashford, Kent, TN255AH, UK 2: Department of Econometrics and Business Statistics, Monash University, Australia

Publication date: October 20, 2006

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