Detecting Outliers in Deterministic Nonparametric Frontier Models with Multiple Outputs

Paul Wilson

Journal of Business & Economic Statistics, 1993, vol. 11, issue 3, 319-23

Abstract: This article provides a statistical methodology for identifying outliers in production data with multiple inputs and outputs used in deterministic nonparametric frontier models. The methodology is useful in identifying observations that may contain some form of measurement error and, thus, merit closer scrutiny. When data checking is costly, the methodology may be used to rank observations in terms of their dissimilarity to other observations in the data, suggesting a priority for further inspection of the data.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:bes:jnlbes:v:11:y:1993:i:3:p:319-23

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