In this paper, a three-echelon supply chain model is analyzed to determine strategies to reduce the supply chain system dynamics. Uniqueness of this research stems from the use of multiple models with varying degrees of detail representing the same supply chain. The significance of a detailed supply chain model on the quality of result is made clear. Factors employed to build an abstract to a d...

The aim of this study was to identify and prioritize factors affecting farmers’ level of satisfaction in agricultural production cooperatives ofGuilan Province, Iran. To this aim, library studies were conducted, and 15 factors affecting farmers’ satisfaction were identified. Next, they wereprioritized byfield studies using a questionnaire. The statistical population consisted of members of agri...

total fertility rate relates to the number of children that a woman bears in the fertility period of her life. fertility function is one of the most important health and population indicators. this indicator affects social, health, economic and cultural factors. this study is an ecological or correlative one. factors affecting total fertility rate in iran in the year 2000 are studied in this pa...