Mahnaz Ahadzadeh Namin - Department of mathematics, Islamic Azad University, Shahr-e-Qods Branch, Tehran, Iran.
Elaheh Khamseh - Department of mathematics, Islamic Azad university, Shahr-e-Qods Branch, Tehran, Iran.

Evaluating the performance of organizations can provide managers with useful information about the status of the organization compared to other organizations so that managers can take a step towards the growth and excellence of the organization. Obviously, the number of indicators and their amount affect the performance evaluation of organizations. So, by collecting the exact values of the indicators, an accurate and accurate performance evaluation will be provided to managers of organizations. In this article, we intend to evaluate the companies investing in the stock exchange. Since in the table of indices related to these companies published by the Iran Stock Exchange Organization there are indices whose values have been lost for any reason (not available - heterogeneous index), it is necessary to use envelopment analysis models. We used data (DEA) in the presence of heterogeneous indicators. We have used the model of Cook et al.'s (۲۰۱۳) article to evaluate companies. For the conceptual use of research, we have described and implemented their method step by step. Lastly, we have analyzed the results.

Non-homogeneous, Data envelopment analysis