List of Articles Sortino Open Access Article Abstract Page Full-Text 1 - Explaining the Model of Mental Accounting for the Selection of Portfolios of Shares of Companies in the Tehran Stock Exchange with Investment Horizon Approach Hasan Valiyan MohammadReza Abdoli Mehdi Safari Gerayli Jafar Ghilichli Open Access Article Abstract Page Full-Text 2 - Performance Evaluation of Closed Ended Mutual Funds in Pakistan M. Bilawal M. Dilawar Khan R. Yasir Hussain U. Akmal Open Access Article Abstract Page Full-Text 3 - Evaluating the Performance of a Pairs Trading System in Tehran Stock Exchange: the Cointegration Approach and Sortino Ratio Analysis Saeid Fallahpour hasan hakimian