Dynamic DEA: A Hybrid Measure Approach

 In the real world applications, there are some situations where inputs and outputs are time-dependent and are affected during the production periods. Capital stock can be seen as an effective instance in such occasions. In order to handling long-time planning, dynamic structure was proposed in efficiency evaluation. In this framework, there are some of the inputs and outputs change proportionally, which is called radially and the others change non-radially. Hence, for efficiency evaluation a combination of the radial and non-radial approaches, the hybrid model is applied.  This paper goals to extend the hybrid measure in dynamic structure of Data Envelopment Analysis(DEA), also efforts to evaluate the overall efficiency of Decision Making Units(DMUs) with both radial and non-radial inputs and outputs for the whole terms as well as each term efficiencies.