Article ID: | iaor20118269 |
Volume: | 215 |
Issue: | 2 |
Start Page Number: | 431 |
End Page Number: | 438 |
Publication Date: | Dec 2011 |
Journal: | European Journal of Operational Research |
Authors: | Wallenius Jyrki, Korhonen Pekka J, Soleimani-damaneh Majid |
Keywords: | returns to scale |
This paper provides computationally efficient approaches for determining to which returns to scale (RTS) class a unit belongs in weight‐restricted Data Envelopment Analysis (DEA) models. A non‐traditional computational algorithm is introduced. The suggested approach is based on the calculation of certain ratios within the data set and offers obvious computational advantages over the traditional approaches involving the solution of standard DEA models. Some theorems and algorithms are given. Computational advantages of the provided results are discussed and one of the algorithms is illustrated using real world data.