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Measuring performance heterogeneity within groups: A two-dimensional approach

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  • Fritsch, Michael
  • Stephan, Andreas

Abstract

We introduce a new two-dimensional measure for the heterogeneity of performance within groups of economic units. This measure accounts both, for the relative performance of the single units of groups and their relative size. We demonstrate that the new measure leads to a much more differentiated description of heterogeneity than alternative measures, for example, the mean or range. In particular, we provide an example to demonstrate that the proposed measure of heterogeneity is relatively robust with regard to extreme values of units ("outliers") with a relatively small size.

Suggested Citation

  • Fritsch, Michael & Stephan, Andreas, 2004. "Measuring performance heterogeneity within groups: A two-dimensional approach," Freiberg Working Papers 2004/03, TU Bergakademie Freiberg, Faculty of Economics and Business Administration.
    • Handle: RePEc:zbw:tufwps:200403
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    Cited by:

    1. Fritsch, Michael & Stephan, Andreas, 2004. "The distribution and heterogeneity of technical efficiency within industries: An empirical assessment," Freiberg Working Papers 2004/12, TU Bergakademie Freiberg, Faculty of Economics and Business Administration.
    2. Fritsch, Michael & Stephan, Andreas, 2004. "What causes cross-industry differences of technical efficiency? An empirical investigation," Freiberg Working Papers 2004/13, TU Bergakademie Freiberg, Faculty of Economics and Business Administration.

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    JEL classification:

    • C10 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - General
    • C43 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Index Numbers and Aggregation
    • L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance

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