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A new method for detecting outliers in Data Envelopment Analysis

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  • Nam Anh Tran
  • Gerald Shively
  • Paul Preckel

Abstract

We introduce a simple method for detecting outliers in Data Envelopment Analysis. The method is based on two scalar measures. The first is the relative frequency with which an observation appears in the construction of the frontier when testing the efficiency of other observations, and the second is the cumulative weight of an observation in the construction of the frontier. We provide a link to computer programming code for implementing the procedure.

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  • Nam Anh Tran & Gerald Shively & Paul Preckel, 2010. "A new method for detecting outliers in Data Envelopment Analysis," Applied Economics Letters, Taylor & Francis Journals, vol. 17(4), pages 313-316.
    • Handle: RePEc:taf:apeclt:v:17:y:2010:i:4:p:313-316
    DOI: 10.1080/13504850701765119
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    Cited by:

    1. Aude Le Lannier & Simon Porcher, 2014. "Efficiency in the public and private French water utilities: prospects for benchmarking," Applied Economics, Taylor & Francis Journals, vol. 46(5), pages 556-572, February.
    2. Laura Carosi & Giovanna D'Inverno & Letizia Ravagli, 2014. "Global public spending efficiency in Tuscan municipalities," Discussion Papers 2014/175, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
    3. E. Gutiérrez & S. Lozano & B. Adenso-Díaz & P. González-Torre, 2015. "Efficiency assessment of container operations of shipping agents in Spanish ports," Maritime Policy & Management, Taylor & Francis Journals, vol. 42(6), pages 591-607, August.
    4. Tsekouras, Kostas & Chatzistamoulou, Nikos & Kounetas, Kostas, 2017. "Productive performance, technology heterogeneity and hierarchies: Who to compare with whom," International Journal of Production Economics, Elsevier, vol. 193(C), pages 465-478.
    5. Asmild, Mette & Hougaard, Jens Leth & Olesen, Ole B., 2013. "Testing over-representation of observations in subsets of a DEA technology," European Journal of Operational Research, Elsevier, vol. 230(1), pages 88-96.
    6. Arega D. Alene, 2010. "Productivity growth and the effects of R&D in African agriculture," Agricultural Economics, International Association of Agricultural Economists, vol. 41(3‐4), pages 223-238, May.
    7. Alphonse Singbo & Alfons Oude Lansink & Grigorios Emvalomatis, 2014. "Estimating farmers’ productive and marketing inefficiency: an application to vegetable producers in Benin," Journal of Productivity Analysis, Springer, vol. 42(2), pages 157-169, October.
    8. Mohammed Al-Siyabi & Gholam R. Amin & Shekar Bose & Hussein Al-Masroori, 2019. "Peer-judgment risk minimization using DEA cross-evaluation with an application in fishery," Annals of Operations Research, Springer, vol. 274(1), pages 39-55, March.
    9. Duygun, Meryem & Sena, Vania & Shaban, Mohamed, 2016. "Trademarking activities and total factor productivity: Some evidence for British commercial banks using a metafrontier approach," Journal of Banking & Finance, Elsevier, vol. 72(S), pages 70-80.
    10. Carolyn–Dung T. T. Tran & Renato A. Villano, 2017. "Input Rigidities and Performance of Vietnamese Universities," Asian Economic Journal, East Asian Economic Association, vol. 31(3), pages 253-273, September.
    11. Jorge H. Luna & Julio Mar-Ortiz & María D. Gracia & Dionicio Morales-Ramírez, 2018. "An efficiency analysis of cargo-handling operations at container terminals," Maritime Economics & Logistics, Palgrave Macmillan;International Association of Maritime Economists (IAME), vol. 20(2), pages 190-210, June.
    12. Ester Gutiérrez & Sebastián Lozano, 2020. "Benchmarking Formula One auto racing circuits: a two stage DEA approach," Operational Research, Springer, vol. 20(4), pages 2059-2083, December.
    13. Stead, Alexander D. & Wheat, Phill & Greene, William H., 2023. "Robust maximum likelihood estimation of stochastic frontier models," European Journal of Operational Research, Elsevier, vol. 309(1), pages 188-201.
    14. Van Puyenbroeck, Tom & Montalto, Valentina & Saisana, Michaela, 2021. "Benchmarking culture in Europe: A data envelopment analysis approach to identify city-specific strengths," European Journal of Operational Research, Elsevier, vol. 288(2), pages 584-597.

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