Journal of Operational Research and Its Applications ( Applied Mathematics ) - Lahijan Azad University

Fair reward allocation with the aim of improving the performance and efficiency of employees and organizational units has long been considered by managers and organizational theorists. This allocation is usually based on the performance of the units over a period of time. The purpose of this study is to provide a new solution for fair reward allocation based on improving the performance of a unit in a period compared to its previous period, because sometimes a unit may be frustrated and not try to improve performance in future periods simply by comparing organizational units and ignoring the process of improving performance compared to its past. Therefore, in this study, the reward allocation between organizational units is based on the amount of change in their relative efficiency. For this purpose, first the ratio of inputs and the ratio of outputs are calculated for each unit in two consecutive periods. Then, the performance of the units is analyzed using data envelopment analysis and considering the ratio of percentage change in outputs to percentage change in inputs. Finally, according to the degree of satisfaction of the units, the 
reward is assigned to the units. The approach presented in the research is explained in the form of a case study in the banking industry.