Dynamic DEA models with network structure: An application for Iranian airlines

Efficiency estimation of interdependent divisions within a company or assessing the interrelated processes in a production system provides insights for improving the operational performance. Recent developments in network data envelopment analysis (NDEA) models enable decision making units (DMUs) to...

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Vydáno v:Journal of air transport management Ročník 57; s. 52 - 61
Hlavní autoři: Omrani, Hashem, Soltanzadeh, Elham
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 01.10.2016
Témata:
Airlines
Dynamic network DEA
Efficiency
Relational analysis
Airlines
Efficiency
Dynamic network DEA
Relational analysis
ISSN:0969-6997, 1873-2089
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Shrnutí:Efficiency estimation of interdependent divisions within a company or assessing the interrelated processes in a production system provides insights for improving the operational performance. Recent developments in network data envelopment analysis (NDEA) models enable decision making units (DMUs) to be informed of inefficient processes within the system. The NDEA model assesses the processes of the system in a specific moment and ignores the dynamic effects within the production processes. Thus, without considering the temporal dimension of production processes, biased efficiency measurement will be obtained that provides misleading information to DMUs. For evaluating the performance of a DMU with interrelated processes during specified multiple periods, this paper proposes a relational dynamic NDEA (DNDEA) model which measures the efficiencies of the system and its internal processes over the time, simultaneously. To illustrate the capability of the proposed model, this study for the first time measures the efficiency of eight Iranian airlines in several periods connected to each other by carry over flows. The actual data is gathered in three periods from 2010 to 2012 and the results are compared with the dynamic DEA and network DEA models in the same time span. •The paper develops dynamic DEA with network structure.•Our model is based on relational dynamic model introduced by Kao (2013).•The proposed model is applied for Iranian airlines.
ISSN:0969-6997
1873-2089
DOI:10.1016/j.jairtraman.2016.07.014