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Aggregation bias and its bounds in measuring technical efficiency

Rolf Fare, Shawna Grosskopf and Valentin Zelenyuk

Applied Economics Letters, 2004, vol. 11, issue 10, 657-660

Abstract: The discussion about the bias due to input (or output) aggregation in efficiency measurement based on data envelopment analysis, recently revisited by Tauer (2001) and Fare and Zelenyuk (2002) is continued. Attention is focused on the direction and the bounds of the aggregation bias.

Date: 2004
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