Evaluating the Economies of Scale in Islamic Azad University Branches

This paper investigates the economies of scale of higher education in Islamic Azad University. We use the long-run Translog multi product cost function and estimate, respected to the homogeneity and symmetry restrictions, to use Systematic Iterative Seemingly Unrelated Regression (ISUR). The data will be collected from 29 selected branches of Islamic Azad University during 2000-2005.Results indicate diseconomies of scale in level of undergraduate education and economies of scale in level of postgraduate education and an optimal number of students for undergraduate education is 7000 to 9000 and for postgraduate education is 800 to 1000.