فهرس المقالات Keywords: Stock exchange حرية الوصول المقاله صفحة الملخص نص كامل 1 - A hybrid Model on the Basis of Data Envelopment Analysis and Data Mining Techniques to Analyze the Investment Behavior in Stock Exchange: A Real Case Study in Tehran Stock Exchange Saiedeh Molla Hosseinagha Kaveh Khalili-Damghani