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    Wyświetlanie 1-3 z 3
    Tytuł:
    DEA-based competition strategy in the presence of undesirable products : an application to paper mills
    Autorzy:
    Amirteimoori, Alireza
    Masrouri, Simin
    Powiązania:
    https://bibliotekanauki.pl/articles/2099790.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    data envelopment analysis
    equilibrium efficient frontier
    undesirable outputs
    efficiency
    Opis:
    In real applications of data envelopment analysis (DEA), there are cases in which undesirable outputs are produced along with desirable outputs in such a way that the total sum of the produced undesirable outputs over the production units must be fixed and constant. In this case, a trade-off between the decision-making units (DMUs) is needed to balance the production of undesirable outputs. In a rational sight, this trade-off is done in such a way that all DMUs improve their relative performances. In this paper, a single DEA-based model is proposed to model fixed and variable-sum undesirable outputs in production processes. A common equilibrium efficient frontier is constructed and after reallocating the input/output factors, all decision-making units (DMUs) prevail as efficient. A real case of 32 paper mills in China is given. The results of the analysis demonstrated that some economically developed paper mills have better performance than less developed paper mills; in particular, all efficient paper mills are the developed ones.
    Źródło:
    Operations Research and Decisions; 2021, 31, 2; 5--21
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Project implementation scenario selection for sustainable project and product lifecycle management : application of network data envelopment analysis
    Autorzy:
    Kuchta, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/29432381.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    network DEA
    sustainable project management
    desirable inputs
    undesirable outputs
    Opis:
    A method has been proposed to select one of several project implementation variants in the context of sustainable project management. The method should be applied in the phase of the project definition. The projects are viewed across the entire lifecycle of the project and its product. In all the phases, the sustainability aspects should be addressed in a balanced way. The sustainability context implies that different stakeholders will have conflicting opinions on the weights of different variables. The proposed approach is based on network Data Envelopment Analysis that does not require the weights of individual variables as input. Consequently, the proposed method is the first approach allowing users to select a project implementation variant in the context of sustainability and the entire project and product lifecycle, without imposing the weights of individual variables. The proposal is designed for organisations using project sustainable management.
    Źródło:
    Operations Research and Decisions; 2023, 33, 4; 133--154
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficiency measurement using nonparametric production analysis in the presence of undesirable outputs : an application to power plants
    Autorzy:
    Amirteimoori, A.
    Kordrostami, S.
    Fooladvand, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/406646.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    data envelopment analysis
    performance analysis
    undesirable outputs
    weak disposability
    efficiency
    input/output
    Opis:
    In order to deal with undesirable products in models of performance analysis, we need to replace the assumption of free disposability by weak disposability and this assumption has been used to model undesirable products as outputs. The traditional axiom of weak disposability of Shephard (1970) is given in a multiplier form and, in this sense, the level of bad outputs is equal to zero if and only if the level of the desirable outputs is equal to zero. An alternative definition of the weak disposability of outputs in additive form has been proposed. An axiomatic foundation has been introduced to construct a new production technology space in the presence of undesirable outputs. The model is illustrated using real data from 92 coal fired power plants.
    Źródło:
    Operations Research and Decisions; 2017, 27, 3; 5-20
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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