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ارزیابی قابلیت اطمینان استراتژیهای مدیریت سهام در تقاضای وابسته
سال انتشار: 2017 - تعداد صفحات فایل pdf انگلیسی: 4 - تعداد صفحات فایل doc فارسی: 12
در این مقاله، یک رویکرد روش شناختی پیشنهاد شده که این رویکرد، امکان محاسبه کمیت سهام ایمنی در تقاضای وابسته را با توجه به الزامات قابلیت اطمینان زنجیره تامین فراهم می کند. انواع مختلف استراتژیهای مدیریت دارایی در تقاضای وابسته بررسی شد؛ نتایج کل محاسبه هزینه ها با توجه به قابلیت اطمینان بدست آمد.
کلید واژه ها: قابلیت اطمینان زنجیره تامین | مدیریت دارایی | تقاضای وابسته | نظم کامل
|مقاله ترجمه شده|
Forward and backward stocking policies for a two-level supply chain with consignment stock agreement and stock-dependent demand
سیاست های انبارداری پیشین و عقب برای یک زنجیره تأمین دوجانبه با توافقنامه سهام توزیع و تقاضای وابسته به سهام-2017
We consider a vendor-managed inventory with consignment stock agreement applied to the integrated vendor–buyer system, in which the vendor manufactures a single product in batches and delivers it in equal-sized transfer lots to the buyer. Some of the delivered items are presented to the end customers in the buyer’s display area, while the rest of the items are kept in the buyer’s backroom warehouse. Demand is assumed to be positively dependent on the amount of stock displayed. We propose a new joint economic lot sizing (JELS) model, taking into account the vendor’s stocking policy, to maximize the total profit for the coordinated system. This paper first proves that, for any stock-dependent demand, a minimum restocking level at the buyer’s sales floor is a more profitable strategy than the traditional run out replenishment policy. It then shows that when the unit inventory holding cost decreases as stock moves downstream the supply chain, the vendor ought to adopt the forward stocking policy, in which product is pushed forward to the buyer’s warehouse as soon as possible. Finally, it derives the analytical formulations for the maximum inventory levels at different stocking points, while the vendor adopts either forward or backward stocking policy. Numerical examples are also provided for illustration.
Keywords: Inventory | Stocking policy | Stock-dependent demand | Joint economic lot sizing |Consignment
Two-way product recovery in a closed-loop supply chain with variable markup under price and quality dependent demand
بازیابی محصول دو طرفه در زنجیره تامین حلقه بسته با نشانه گذاری متغیر تحت قیمت و تقاضای وابسته به کیفیت-2017
This article considers a two-way product recovery in a two-echelon closed-loop supply chain which comprises one manufacturer and one retailer for trading a single product. The market demand of the product is linearly dependent on selling price and product quality. The retailer sets the selling price with a variable markup on the wholesale price of the manufacturer. The manufacturer also sets his wholesale price with a fixed markup on the production cost of the product. The retailer recovers the used product in two ways. He collects from consumers the used products, which is a fraction of newly sold products in the forward channel. He also collects the used products through an exchange offer and replaces a fraction of the collected used products by new ones. We analyze the proposed model under four different decision structures: decentralized (Nash game), manufacture led and retailer-led Stackelberg games and centralized (cooperative game) structures. We then compare these policies to identify the best policy. We also examine the feasibility of the cooperative game through a bargaining model. To examine the effects of key model-parameters on the decisions, we perform a sensitivity analysis for a numerical example.
Keywords: Two-way product recovery | Exchange offer | Product quality | Variable markup |Closed-loop supply chain
Two-period pricing and decision strategies in a two-echelon supply chain under price-dependent demand
استراتژی های قیمت گذاری و تصمیم گیری دو مرحله ای در یک زنجیره تامین دو الگوی تحت تقاضای وابسته به قیمت-2017
This paper presents a two-period supply chain model which is comprised of one manu facturer and one retailer who are involved in trading a single product. The demand rate in each period is dependent on the selling prices of the current period and the previ ous period. We assume that the manufacturer acts as the Stackelberg leader and declares wholesale price(s) to the retailer who follows the manufacturer’s decision and sets his selling prices for two consecutive periods. The manufacturer adopts one of the two pricing options: (1) setting the same wholesale price to both the selling periods (2) setting differ ent wholesale prices to two different selling periods. Based on these pricing options, we develop four decision strategies of the manufacturer and the retailer and compare them. For a numerical example, we study the effects of these decision strategies on the optimal results of the supply chain. Further, we graphically analyze under what circumstances a particular decision strategy plays a dominant role.
Keywords: Two-echelon supply chain | Two-period | Pricing and decision strategy | Price-dependent demand | Dynamic pricing
Partial Trade Credit Policy of Retailer in Economic Order Quantity Models for Deteriorating Items with Expiration Dates and Price Sensitive Demand
مشتقات جزئی سیاست های اعتباری تجارت خرده فروش در نظم اقتصادی مدل کمیت برای اقلام فاسدشدنی با تاریخ انقضا و قیمت تقاضای حساس-2015
In a supplier-retailer-customer supply chain, a credit-worthy retailer frequently receives a permissible delay on the entire purchase amount without collateral deposits from his/her supplier (i.e., an up-stream full trade credit). By contrast, a retailer usually requests his/her credit-risk customers to pay a fraction of the purchase amount at the time of placing an order, and then grants a permissible delay on the remaining balance (i.e., a down-stream partial trade credit). Also, in selecting an item for use, the selling price of that item is one of the decisive factors to the customers. It is well known that the higher selling price of item decreases the demand rate of that item where the lesser price has the reverse effect. Hence, the demand rate of an item is dependent on the selling price of that item. In addition, many products such as fruits, vegetables, high-tech products, pharmaceuticals, and volatile liquids not only deteriorate continuously due to evaporation, obsolescence and spoilage but also have their expiration dates. However, only a few researchers take the expiration date of a deteriorating item into consideration. This paper proposes an economic order quantity model to allow for: (a) the strategy that supplier offers retailer a full trade credit policy whereas the retailer offers their customers a partial trade credit policy, (b) selling price dependent demand rate, (c) a profit maximization objective and (d) deteriorating items not only deteriorate continuously but also have their expiration dates. For the objective function sufficient conditions for the existence and uniqueness of the optimal solution are provided. An efficient algorithm is designed to determine the optimal pricing and inventory policies for the retailer. Finally, numerical examples are presented to illustrate the proposed model and the effect of key parameters on optimal solution is examined. Keywords: EOQ model | Deterioration | Partial trade credit | Expiration dates | Pricing
Manufacturers pricing strategy in a two-level supply chain with competing retailers and advertising cost dependent demand
استراتژی قیمت گذاری سازنده در یک زنجیره تامین در سطح دو با رقابت خرده فروشان و تقاضای وابسته به هزینه تبلیغات-2014
The paper studies a two-echelon supply chain comprising one manufacturer and two competing retailers with advertising cost dependent demand. The manufacturer acts as the Stackelberg leader who specifi es wholesale price for each retailer. The two retailers compete with each other in advertising and they have different sales costs. The manufacturer uses one of the following two pricing strategies: (i) setting the same wholesale price for both the retailers irrespective of the difference in their sales costs; (ii) setting different wholesale prices for the retailers dependin g on their sales costs. Two m odels are developed. In the fi rst model, the manufacturer shares a fraction of each retailers advertising cost while in the second model, the manufacturer does not share any ret ail ers ad ver tis ing ex pen ses . In bot h the m odel s, we der ive th e ret ail ers and ma nuf actu rer s opt im al strategies. A numerical example is given to illustrate the theoretical results developed in each model. Computational results show that it is always benefi cial for the manufacturer to adopt different wholesale pricing strategy for the retailers. Ke yw or ds : Supply chain Advertising cost dependent demand Pricing strategy