Data Envelopment Analysis Models In The Presence Of Ratio Data and Non-Discretionary Factors
محورهای موضوعی : International Journal of Data Envelopment Analysis
1 - Department of Mathematics, Sari Branch, Islamic Azad University Sari, Iran
کلید واژه: Efficiency, Ratio data, Data Envelopment Analysis, Non-discretionary Factors, convexity,
چکیده مقاله :
The traditional data envelopment analysis (DEA) models for the observations containing ratio data as input or output may result incorrect efficiency scores. To overcome this shortcoming, a set of modified DEA models has been presented in this paper by taking into account the correct convexity of decision making units (DMUs) when a ratio variable is included in the assessment model.
[1] Charnes, A., Cooper, W. W., Rhodes, E. (1978). Measuring the Efficiency of Decision Making Units. European Journal of Operational Research, 62, 74-87.
[2] Banker, R. D., Morey, R.(1984). Some models for estimating technical and scale efficiency in data envelopment analysis. Management Science 30, 1078-1092.
[3] Banker, R. D., Morey, R. (1986). Efficiency analysis for exogenously fixed inputs and outputs. Opreations Research, 34, 513-521.