AbstractIn conventional social productive efficiency measurements that consider the production of undesirable outputs such as CO2, a DEA-based non-parametric method of production possibility frontier (PPF) identification coupled with the directional distance-function approach a-la Luenberger (1992) is typically employed. This paper shows that the discrepancy between parametric and non-parametric methods of PPF identification in social inefficiency measures can be non-negligibly large when the number of observations is small or the data are not well-scattered. By using the same data as Ha et al. (2011), who used non-parametric PPF identification to measure the social efficiency of Japan's inter-city transport services with lifecycle CO2 as the undesirable output, this paper demonstrates that adopting parametric PPF identification instead can result in considerably higher inefficiency measures for decision making units (DMUs) with relatively large undesirable outputs.

    HighlightsIdentifies the discrepancy in social efficiency measures between non-parametric and parametric frontier identification.As one plausible example, parametrically estimates social productive inefficiency of air and rail in Japan.Inefficiency of aviation sector via parametric method is higher by around 80%.


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    Titel :

    On the discrepancy in the social efficiency measures between parametric and non-parametric production technology identification


    Beteiligte:
    Ha, Hun Koo (Autor:in) / Kaneko, Shinji (Autor:in) / Yamamoto, Masashi (Autor:in) / Yoshida, Yuichiro (Autor:in) / Zhang, Anming (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2016-09-14


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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