Relative Efficiency Assessment of Police Units through using Data Envelopment Analysis Technique: A Literature Review

Enhancement of organizational efficiency in all levels is among the most important requirements of every organization to maintain its accountability power towards competitive conditions and growing environmental demands. The prerequisite to fulfill is arranging a method for assessing efficiency and finding weak points of the subordinate departments. With respect to the complexity of the tasks of police units and the various data and feedback of such units, it is not so easy to review their efficiency and performance. Data envelopment analysis (DEA) method is one of the best existing methods for determining the relative efficiency of decision-making units. The non-parametric method while being user-friendly, is capable of offering proper and reliable ranking, as well as identifying weak points and recommending solutions for removing the weak points in every inefficient unit. The present study reviews the scientific surveys conducted so far to assess the efficiency of police units through using the method. Therefore, some articles extracted from some electronic scientific databases such as Proquest and Sciencedirect. Sixteen articles deeply studied and the result offered as articles summary in accompany with the relative contrastive table. The result of the research indicates the reliability and efficiency of the above mentioned method in assessing the relative efficiency of police units. This research has recommended the inputs and outputs in implementing DEA Model in police units.