This paper will investigate the optimum portfolio for an investor, taking into account 5 criteria. The mean variance model of portfolio optimization that was introduced by Markowitz includes two objective functions; these two criteria, risk and return do not encompass all of the information about investment; information like annual dividends, S&P star ranking and return in later years which is ...

In this paper the real-world occurrence of the multiple-product multiple-constraint single period newsboy problem with two objectives, in which there is incremental discounts on the purchasing prices, is investigated. The constraints are the warehouse capacity and the batch forms of the order placements. The first objective of this problem is to find the order quantities such that the expected ...

supplying required human resource is one of the strategic goals of an organization. therefore, organizations plan and predict the required human resources in order to prevent this problem. present study using practical approach seeks to assist organizations to achieve their various goals in human resources planning. the designed model in this study clarifies vague, inaccurate, and fuzzy express...