A study of the input/output variable characteristics in DEA

Autor: Kun-Cheng Lee, Chiao-Ping Bao, Hsiang-Lin Pu
Rok vydání: 2010
Předmět:
Zdroj: Journal of the Chinese Institute of Industrial Engineers. 27:429-437
ISSN: 2151-7606
1017-0669
DOI: 10.1080/10170669.2010.525393
Popis: Since Charnes et al. [“Measuring the efficiency of decision making units,” European Journal of Operational Research, 2, 429–444 (1978)] proposed the concept of data envelopment analysis (DEA), many papers have been published using DEA. However, not many of these papers discuss the fundamental characteristics of input and output variables. For instance, the differing relationships among variables are rarely discussed, nor is there any discussion about the effects on evaluating efficiency when data variables are transformed. If the data used for analysis are misused, the relative efficiency among different departments or organizations can be affected. Thus, a clarification of the relative relationships among different variables is essential in order to achieve accuracy in using DEA. This article, therefore, aims to discuss these issues through a focus on the characteristics of input and output variables used in DEA. By means of mathematical analysis, this research proposes four theorems, together with two e...
Databáze: OpenAIRE
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