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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (10): 1426-1436    DOI: 10.1631/jzus.A0820121
Applied Mathematics     
A comparative analysis of multi-output frontier models
Tao ZHANG, Eoghan GARVEY
Department of Economics, National University of Ireland, Galway, Ireland
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Abstract  Recently, there have been more debates on the methods of measuring efficiency. The main objective of this paper is to make a sensitivity analysis for different frontier models and compare the results obtained from the different methods of estimating multi-output frontier for a specific application. The methods include stochastic distance function frontier, stochastic ray frontier, and data envelopment analysis. The stochastic frontier regressions with and without the inefficiency effects model are also compared and tested. The results indicate that there are significant correlations between the results obtained from the alternative estimation methods.

Key words： Efficiency      Multi-output      Stochastic distance function frontier      Stochastic ray frontier      Data envelopment analysis (DEA)      Correlation     
Received: 18 February 2008     
CLC:  O212  
  O22  
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Tao ZHANG
Eoghan GARVEY
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Tao ZHANG, Eoghan GARVEY. A comparative analysis of multi-output frontier models. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(10): 1426-1436.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820121     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I10/1426

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