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نتیجه جستجو - هماهنگی زنجیره تامین

تعداد مقالات یافته شده: 23
ردیف عنوان نوع
1 Recycling channel selection and coordination in dual sales channel closed-loop supply chains
انتخاب و هماهنگی کانال بازیافت در زنجیره های تأمین حلقه بسته کانال فروش دوتایی-2021
The implications of dual sales channels (direct and traditional retail channels) and closedloop supply chains (CLSCs) have been well recognized in the literature and in practice. In this study, we explore the reverse channel choice for the manufacturer and the design of coordination mechanisms in CLSCs in the midst of dual competitive sales channels. We consider three recycling channel structures: manufacturer collecting (Model M), retailer collecting (Model R) and third-party collecting (Model C) structures. We present the following findings. The manufacturer and the retailer obtain more profits in Model M and Model R, respectively. However, from the perspective of the supply chain system, either the M model or the R model could be optimal depending on the following parameters: channel competition intensity between the direct and retail channels, collection costs and remanufacturing cost savings. Furthermore, we show that a simple price contract that consists of the wholesale price, direct channel price and transfer price of the used product (in Model R and Model C), with a complementary profit sharing mechanism can effectively coordinate dual-channel CLSCs under different recycling channel structures.
Keywords: Closed-loop supply chain | Direct and traditional channel competition | Recycling channel selection | Supply chain coordination
مقاله انگلیسی
2 A hybrid modeling approach for green and sustainable closed-loop supply chain considering price, advertisement and uncertain demands
یک روش مدل سازی ترکیبی برای زنجیره تامین حلقه بسته سبز و پایدار با در نظر گرفتن قیمت ، تبلیغات و تقاضاهای نامشخص-2021
The closed-loop supply chain network design (CLSCND) has garnered a lot of attention since it can handle economic and environmental issues. Likewise, supply chain coordination (SCC) tools can play an important role in enhancing the performance of the supply chains. This paper proposes a new hybrid method, in which SCC decisions and CLSCND objectives are simultaneously involved. First, this approach makes price, greenness, and advertisement decisions, and then it aims at maximizing profit and minimizing CO2 emission. A new nonlinear programming (NLP) model is developed based on the sensitivity of the return rate to green quality and the customers’ maximum tolerance, while the demands are uncertain. In order to overcome the uncertain demands, a robust optimization (RO) model is used. A Lagrangian relaxation algorithm is also employed to solve large-scale instances in a logical running time. The applicability of the proposed approach is corroborated through several examples. The results indicate an improvement in the performance of economic and environmental objectives under greening and advertising decisions. Furthermore, the proposed RO model outperforms the model that does not consider a robust approach.
Keywords: Closed-loop supply chain | Supply chain coordination | Supply chain network design | Robust optimization | Lagrangian relaxation | Uncertain demand
مقاله انگلیسی
3 An agent-based approach for project-driven supply chain problem under information asymmetry and decentralized decision-making
یک رویکرد مبتنی بر عامل برای مشکل زنجیره تأمین پروژه محور تحت عدم تقارن اطلاعات و تصمیم گیری غیرمتمرکز-2021
In a project-driven supply chain, the project schedule and material supply influence one another. The effective decision-making process between the project manager and the suppliers can promote the flexibility and competitiveness of supply chains. However, due to their incompatible objectives, the suppliers are reluctant to disclose private information. By incorporating information asymmetry, we build a model to describe the decentralized decision-making process. The project manager does not know the lead time and the production/ transportation cost of the material suppliers accurately. To build an effective alliance in the supply chain, different contracts are considered to provide a positive or negative incentive for the suppliers, including a non- financial incentive contract with continuous orders. Then, we present a framework that integrates the agent- based approach and evolutionary algorithm. In the framework, the agents not only negotiate with each other to complete a solution but also jointly evaluate the solutions generated by the evolutionary algorithm. Finally, an experiment is conducted to compare the agent-based approach and the classical NSGA-II under information symmetry. The results show that the gap between the algorithms is acceptable, especially for a large project. The results also show that the non-financial incentive contract is beneficial to all the players in the supply chain.
Keywords: Project scheduling | Multi-agent system | Supply chain coordination | Contracting
مقاله انگلیسی
4 Dual-channel supply chain coordination considering targeted capacity allocation under uncertainty
هماهنگی زنجیره تأمین دو کانال با توجه به تخصیص ظرفیت هدفمند تحت عدم اطمینان-2021
This paper investigates a dual-channel supply chain (SC) composed of a manufacturer and retailer in which the manufacturer confronts random yield issues. Since supply uncertainty may lead to a production shortage, the manufacturer faces the problem of allocating the products to traditional/online channels. To address this problem, a novel product-allocation policy is developed in which the limited supply is allocated to traditional and online channels under a flexible strategy called “targeted capacity allocation”. In order to coordinate the proposed decentralized channel, a two-part tariff contract is suggested. Furthermore, opening a direct channel besides brick-and-mortar stores is discussed through analytical results. Then, the effectiveness of the targeted capacity allocation policy is investigated by comparing the results of the current model with a case, in which, the same policy is not applied. By doing so, some interesting managerial insights on the merit of applying the capacity allocation policy in managing dual-channel SCs under yield uncertainty are revealed. Finally, numerical analysis shows that the proposed contract can perfectly coordinate the SC and achieve the Pareto improving solution for both partners.
Keywords: Dual-channel supply chain coordination | Yield uncertainty | Capacity allocation | Two-part tariff contract
مقاله انگلیسی
5 Retailer-run resale market and supply chain coordination
بازار فروش مجدد و هماهنگی زنجیره تامین توسط خرده فروش-2021
This study proposes strategies for full coordination of a supply chain when the retailer enables buyers not only to return their product after inspection but also to resell it as used at the store after partial consumption. In recent years, mega-retailers have added resale service to their conventional business of selling new products, which is called the retailer-run resale market. Prior literature shows from the retailer’s perspective that the ultimate motive for running resale business is to reduce the volume of consumers’ product returns. Nevertheless, there is a lack of studies on the retailer’s resale business from the manufacturer’s perspective. We adopt a manufacturer’s perspective and derive strategies to motivate retailers to make decisions for the benefit of the entire supply chain in the presence of the retailer-run resale market using five commonly used types of contracts: revenue-sharing, buybacks, quantity flexibility, quantity discount, and two-part tariff. Ongoing digitalization and web security in retailing have provided a convenient environment for online transactions, which have emerged as a supply chain and become a staple for many shoppers. However, growing popularity of online shopping inevitably increases the volume of product returns because it lacks an opportunity to experience the product before purchase. Thus, an increasing number of online retailers have adopted a resale business unilaterally to reduce consumer returns. The study provides strategic guidelines for a manufacturer to induce such retailers to make decisions for joint profit maximization.
Keywords: Supply chain management | Channel coordination | Product returns | Retailer-run resale market | Uncertainty of product value
مقاله انگلیسی
6 Decision-making and coordination of green closed-loop supply chain with fairness concern
تصمیم گیری و هماهنگی زنجیره تامین حلقه بسته سبز با رعایت انصاف-2021
This paper considers a green closed-supply chain consisting of a manufacturer and a retailer. A Stack- elberg game model of centralized decision-making and decentralized decision-making with manufac- turer’s fairness concern was constructed based on the consideration of retailer’s sales effort. The decision-making of supply chain members under the above two situations and their reasons are analyzed in depth. According to the model, a green closed-loop supply chain with profit sharing contract coordination fairness is designed. Finally, the correctness of the model is verified by numerical simu- lation. We generate our findings from three aspects, as follows: when the manufacturer has fair concern behavior, it is not conducive to the environmental performance of green products, resulting in waste of resources, but also forcing retailers to reduce sales efforts and increase the retail price of products. Finally, the benefits of green closed-loop supply chain are seriously damaged. The profit-sharing contract could improve the relationship between members of the supply chain to achieve sustainable economic and environmental development.© 2021 Elsevier Ltd. All rights reserved.
Keywords: Green closed-loop supply chain | Fairness concern | Decision model | Profit-sharing contract
مقاله انگلیسی
7 Supply chain coordination with customer returns and retailers store brand product
هماهنگی زنجیره تامین با بازگشت های مشتری و حفظ نشان تجاری محصول توسط خرده فروش-2018
We examine a retailers Stackelberg supply chain, in which the retailer sells a product in the two brands: its own store brand (SB) and a national brand (NB) supplied by a well-established manufacturer. The two brands both face customer returns, and they differ in product quality. We examine the retailers decision on returns policies for the two brands (either Money Back Guarantee (MBG) or No Refund) and the effects of returns policies on the competition between the two brands. We identify the condition when the retailer should offer MBGs for both brands and we show that MBGs mitigate price competition between the two brands. MBGs are found to enhance the retailers profit and reduce the NB manufacturers profit. We examine coordination mechanisms and find that a centralized supply chain intensifies the competition and pushes the NB to reduce its retail price. A simple coordination contract that can achieve supply chain coordination to ensure a win-win for both the retailer and the NB manufacturer is proposed.
keywords: Supply chain management |Customer returns policy |Store brand
مقاله انگلیسی
8 Coordinating manufacturers innovation and retailers promotion and replenishment using a compensation-based wholesale price contract
هماهنگ سازی نوآوری سازنده و تبلیغ و تجدید تدارکات خرده فروش با استفاده از یک قرارداد قیمت عمده فروشی مبتنی بر غرامت-2018
In this paper, coordination of a manufacturer-retailer chain is investigated where the manufacturer innovates in manufacturing process and the retailer applies promotional efforts. The market demand is assumed to be stochastic dependent on the retailers promotional and the manufacturers innovation efforts. The retailer uses a periodic review inventory system for replenishing items and decides on order-up-to level, review period and promotional efforts level. On the other hand, it is possible for the manufacturer to boost the market demand by innovation in manufacturing process. The retailers promotional and manufacturers innovation efforts not only affect their profits, but also impress their mutual profits and the supply chain performance in an indirect manner. Firstly, we develop the decentralized and centralized decision-making models along with solution procedures and concavity analysis to solve the models. Although the centralized model improves the profitability of the whole supply chain, it may reduce the profitability of either the retailer or the manufacturer. Therefore, we propose a new compensation-based wholesale price contract for encouraging actors to take part in the joint decision-making scheme. Moreover, a profit sharing strategy based on the bargaining power of members is proposed for distributing the surplus profit between members. Finally, the results of the decentralized, centralized and coordination models are compared using test problems and some sensitivity analyses are presented.
keywords: Supply chain coordination |Promotional and innovation |Periodic review |Inventory system |Compensation |Wholesale price contract |Profit sharing
مقاله انگلیسی
9 A supply chain coordination mechanism for common items subject to failure in the electronics, defense, and medical industries
یک مکانیزم هماهنگی زنجیره تامین برای کالاهای رایج درمعرض خرابی در صنایع برق، دفاعی و پزشکی-2018
Prior research on inventory management for imperfect items assumes that such items can be dealt with through salvage or rework. Increased repair costs and decreased production costs arising from modern production processes (e.g. miniaturization, 3D printing), however, have led suppliers to increasingly eschew such solutions in favor of items and components which are discarded upon failure rather than being reworked or scrapped. In this paper, we first determine optimal supplier and buyer inventory policies for items which fail and which cannot be reworked. We then develop a supply chain coordination mechanism which uses a common replenishment time to coordinate a supply chain consisting of a single supplier and n buyers. Our coordination mechanism yields a global minimum for system-wide costs. Numerical examples are provided to illustrate important conditions under which our model is particularly effective at reducing system-wide costs.
keywords: Inventory |Supply chain coordination |Supply chain management
مقاله انگلیسی
10 Reverse supply chain coordination under stochastic remanufacturing capacity
هماهنگی زنجیره تامین معکوس تحت ظرفیت باز - ساخت تصادفی-2018
In this paper, a two-stage reverse supply chain (RSC) is analyzed where the retailer pays rewards to customers to return obsolete products and the manufacturer refurbishes eligible returned items through remanufacturing process. Remanufacturing capacity is assumed as a stochastic variable. Under the uncertainty of remanufacturing capacity, it is possible that some inspected and eligible items could not be processed. If a bought item could not be processed, it should be salvaged at low prices and be considered a lost profit. In such situations, increasing the number of returned obsolete products is suitable where there is a high probability for enough capacity in the remanufacturing process. In this study, a stochastic model is developed to find the optimal paid reward to customers under both scenarios, including decentralized (where the retailer decides independently on reward amount) and centralized (where reward amount is determined based on the whole channel interest). By sharing the manufacturer’s capacity risk, a revenue sharing contract is proposed to convince the retailer to consider uncertainty of remanufacturing capacity in deciding reward amount. Under the proposed contract, a part of retailer revenue is postponed until the remanufacturing process is completed. Non-eligible items, as well as those that cannot be processed due to insufficient capacity are not involved in revenue sharing with the retailer. Our numerical investigations reveal that the proposed scheme is able to coordinate the investigated RSC under the uncertainty of remanufacturing capacity. Contrary to the decentralized scenario, the proposed model recommends fewer paid rewards to customers when there is a high possibility of insufficient capacity in the remanufacturing process.
keywords: Reverse supply chain |Obsolete product |Stochastic remanufacturing capacity |Supply chain coordination
مقاله انگلیسی
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