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2004 Journal Article Aggregation bias and its bounds in measuring technical efficiencyFäre, Rolf, Grosskopf, Shawna and Zelenyuk, Valentin (2004). Aggregation bias and its bounds in measuring technical efficiency. Applied Economics Letters, 11 (10), 657-660. doi: 10.1080/1350485042000207243 |
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2003 Journal Article On aggregate Farrell efficienciesFäre, Rolf and Zelenyuk, Valentin (2003). On aggregate Farrell efficiencies. European Journal of Operational Research, 146 (3), 615-620. doi: 10.1016/S0377-2217(02)00259-X |
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2002 Journal Article Input aggregation and technical efficiencyFäre, Rolf and Zelenyuk, Valentin (2002). Input aggregation and technical efficiency. Applied Economics Letters, 9 (10), 635-636. doi: 10.1080/13504850110118165 |
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2002 Journal Article Discussion on the paper by StoneFäre, Rolf, Grosskopf, Shawna and Zelenyuk, Valentin (2002). Discussion on the paper by Stone. Journal of the Royal Statistical Society. Series A: Statistics in Society, 165 (3), 429-430. doi: 10.1111/1467-985x.02462 |
