ارائه مدلی جهت تعیین مقدار بهینه سفارش اقتصادی بر اساس نرخ معیوبیت و اعتبار معامله

اعتبار معامله به عنوان یک استراتژی مهم برای افزایش سودآوری در مدیریت موجودی شناخته شده است. تعیین و چگونگی این اعتبار به سفارش خرده فروش بستگی دارد. اگر سفارش خرده فروش از پیش فرض تامین کننده کمتر باشد، تامین کننده کسری از مبلغ را ابتدا و باقی را در مدت زمان  تعیین شده و اگر بیشتر باشد تمامی مبلغ را در همان مدت زمان تعیین شده دریافت می کند. پیشینه پژوهش نشان داده است مدل‌هایی که به این امر پرداخته اند، فرض کیفیت محصولات را از قلم انداخته اند. از این جهت هدف اصلی این پژوهش معرفی مدلی است که به طور هم‌زمان اعتبار معامله و فرض معیوبیت کالا را در نظر گرفته باشد. نتایج این پژوهش شامل ارائه روش حلی جهت تعیین سیاست بهینه سفارش و زمان بازپرسازی از سوی خرده فروش است. به منظور اجرای بهینه سازی مدل میزان سفارش اقتصادی از نامعادله حسابیهندسی استفاده شده است.

A Model to Determine the Optimal Economic Order Quantity based on Defective Rate and Credit Trading

Present research intends to look into the role of the strategic thinking in the implementation of the EFQM model through organizational learning within the logistics department of the Ministry of Energy as well as the Ministry’s subsidiary companies. To do this, four hypotheses formulation are presented and tested. The present research is based on the three variables: the strategic thinking as the independent variable, implementation of the EFQM model as the dependent variable and organizational learning as the mediator variable. The current research method in terms of applied objective, strategies and data collection is solidarity, quantitative, and survey questionnaire respectively. In this survey, statistical society includes all managers and field staff working for the Ministry of Energy and subsidiary companies in Iran with the number of 35324 persons, who are serving in 2015. Sampling in this study randomly with stratified kind and using Krejcie and Morgan table was designed for 384 people. Data analysis was conducted by applying the software such as SPSS statistical, Excel and Lisrel. The results of the proposed approach showed that strategic thinking and organizational learning both have a positive impact on the establishment of EFQM. Results of the fitting model indicated that the research data are fitting with the research conceptual model, so the model was verified. Based on the results of the hypotheses tests and given the fact that all the three hypotheses of the research were verified it was concluded that the strategic thinking directly and through the organizational learning affected on the implementation of the desired organizational model.