Capacity utilization in data envelopment analysis with integer data

Document Type : Research Paper


1 (a) Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran

2 Department of Mathematics and Computer Science, Amirkabir University of Technology, Hafez Ave.; Tehran, Iran.


In the process of production, some of the inputs are fixed and cannot easily be changed, such as work hours of workers and hours of administrative or work, these types of inputs are fixed and others are variables. In this paper, by considering some inputs or outputs which are limited, their amounts must be integrated; this concept for integer data is extended. We show the importance of subject by bringing a real example of 25 branches of a bank.