Efficiency analysis to incorporate interval-scale data

Date

2010-12-01

Author

Dehnokhalaji, Akram
Korhonen, Pekka J.
Köksalan, Mustafa Murat
Nasrabadi, Nasim
Wallenius, Jyrki

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

25
views

0
downloads

Cite This

We develop an approach to efficiency analysis to enable us to incorporate interval-scale data in addition to ratio-scale data. Our approach introduces a measure of inefficiency and identifies efficient units as is done in Data Envelopment Analysis. The basic idea in our approach is to find the "best" hyperplane separating the units that are better and worse than each unit. "Best" is defined in such a way that the number of not-better units is maximal. The efficiency measure is defined as a proportion of not-better units to all units. The results are invariant under a strictly increasing linear re-scaling of any input- or output-variables. Thus zeroes or negative values do not cause problems for the analysis. The approach is used to analyze the data of the research evaluation exercise recently carried out at the University of Joensuu, Finland. © 2010 Elsevier B.V. All rights reserved.

Subject Keywords

Data Envelopment Analysis, Interval-scale, Research evaluation

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77955555847&origin=inward
https://hdl.handle.net/11511/107169

Collections

Department of Industrial Engineering, Article