کنترل موجودی با استفاده از استراتژی های پیچیده در زنجیره تامین کانال دوگانه

This paper investigates how to control cost of inventory by analyzing the impact of speculation in a dual-supply chain. Manufacturers’ exploit both traditional channel and direct channel independently to deliver goods. A four view Markov chain model was used to formulate total cost performance, with replenishment of inventory in accordance to Poisson process. Our numerical calculations divulge these findings, in the long run; (i) increasing speculation with increasing foreign search rate, rises warehouse lost sales (ii) increasing speculation, increasing local and foreign search rate with increasing total cost components results in holding cost diminishing aiding collapse of manufactures’ product, (iii) as local, foreign or both search rate increase; (a) holding cost at warehouse and retailer remains constant but diminishes in its percentage contribution to total cost, (b) lost sales cost at warehouse keeps rising, and (c) our proposed two-echelon dual-supply chain may perform better than single supply chain, and (iv) increasing local and foreign search rate against increasing total cost components, escalate total cost. According to the authors, the issue at hand is: speculation impact on total cost not only creates opportunities for manufacturers to expand their products and gain profit but also produces a hazardous side-effect for it can collapse the product.