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A note on the impact of multiple input aggregators in technical efficiency estimation

Aldanondo, Ana M. and Casasnovas, Valero L. (2016): A note on the impact of multiple input aggregators in technical efficiency estimation.

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Abstract

The results of an experiment with simulated data show that using multiple positive lineal aggregators of the same inputs instead of the original variables increases the accuracy of the Data Envelopment Analysis (DEA) technical efficiency estimator in data sets beset by dimensionality problems. Aggregation of the inputs achieves more than the mere reduction of the number of variables, since replacement of the original inputs with an equal number of aggregates improves DEA performance in a wide range of cases

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