represent its worthiness if it is completed before the deadline. For example, consider a stock trading system of an investment consulting company that allows customers to make their orders of the stocks, each customer may set a deadline for the completion of the order transaction. The commission of the company is a percent (say 3%) of the dealed stock price for each transaction. From the standp...

information is the most valuable property in stock exchange market in such a way that the more investors are informed, the better they can succeed in the market. sometimes, in such circumstances, because of a great gap between the management and the ownership in the big public companies, administrators of these companies find themseleves in a better informational situation in comparison with th...

maintenance is one of the inseparable parts of each industry and relations between this part and others consist of many dynamics and feedbacks. by this regard systems dynamic is a tool that can be used to analyze this part. in this paper for a company that produces wire and cable, cause and effect (feedbacks) between maintenance and others part are modeled. after creating stock-flow diagram, mo...

This thesis presents a model to determine safety stock considering the distinct planning parameters for a pharmaceutical company. Traditional parameters such as forecast accuracy, service level requirements and average lead-time are combined with a nontraditional upstream uncertainty parameter defined as supply reliability. In this instance, supply reliability measures uncertainty in the supply...

Measuring Information Systems (IS) value has been constantly attracting much attention and debate within the IS research community. Since information systems effects are often difficult to quantify, traditional payoff evaluation methods often yield conflicting results. In this paper we suggest that some information systems can be evaluated on the basis of their effect on stock return volatility...