دانلود و نمایش مقالات مرتبط با Closed Loop Supply Chains::صفحه 1
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نتیجه جستجو - Closed Loop Supply Chains

تعداد مقالات یافته شده: 3
ردیف عنوان نوع
1 Multi-period multi-product closed loop supply chain network design: A relaxation approach
طراحی شبکه زنجیره تامین حلقه بسته چند محصولی چند دوره ای: یک رویکرد آرام سازی-2021
Growing concern about environmental deterioration, manifested in new laws to protect the environment and business competition, has stimulated the idea of Closed Loop Supply Chains (CLSC). This paper develops strategic decision-making models for two different CLSCs with multiple products over multiple periods. One of the net- works has six levels, while the other has four levels, and they can be applied to products with different levels of complexity during inspection and remanufacturing operations. The supply chain networks are modeled as Integer Linear Programs (ILP) designed to assist decision-making in terms of location/allocation, transportation, and inventory. Taking advantage of the properties of the formulations, we propose an integer relaxation approach to obtain the optimal solution to ILP. The proposed models and methodologies are illustrated with case studies from the literature and with hypothetical datasets. This research contributes with design standard con- figurations for CLSCs that can be used for different types of products. Directly using these configurations is advantageous because the models proposed can be quickly solved using the integer relaxation approach. The associated trials confirm the utility of the models for the case studies and demonstrate encouraging results for the hypothetical datasets.
Keywords: Logistics | Production | Integer Linear Program | Closed Loop Supply Chains | Multi-period model
مقاله انگلیسی
2 Coordinating a closed loop supply chain with fairness concern by a constant wholesale price contract
هماهنگی یک زنجیره تامین حلقه بسته با رعایت انصاف توسط یک قرارداد ثابت قیمت عمده فروشی-2021
The literature on closed loop supply chains (CLSCs) has ignored advantageous inequality aversion while modelling the fairness concern of channel partners and demonstrated that coordinating a decentralised channel requires complex price contracts. In this paper, we show that a constant wholesale price contract can coordinate a decentralised channel in a manufacturer-led CLSC if the retailer’s advantageous inequality aversion is sufficiently strong. The result is valid for a range of equitable shares of the channel profit, such that the allocated share of the manufacturer is larger than that of the retailer, and the retailer’s share is greater than a minimum threshold. Used product collection rate and channel profit are higher when the retailer is inequality averse compared to when she is a profit maximiser. The results are independent of whether the end-of-use products are collected by the manufacturer or the retailer. We also show that the collection rate is higher, and both channel partners are better-off, under the manufacturer collection model. To obtain these results, we solve multistage sequential move games under the two collection models. We apply Karush–Kuhn–Tucker conditions for constrained optimisation, to determine the boundaries for the existence of the subgame perfect Nash equilibrium.
Keywords: Pricing | Channel coordination | Fairness | Inequality aversion | Wholesale price contract
مقاله انگلیسی
3 System dynamics applied to closed loop supply chains of desktops and laptops in Brazil: A perspective for social inclusion of waste pickers
پویایی سیستم در زنجیره تامین حلقه بسته دسکتاپ و لپ تاپ ها در برزیل: یک چشم انداز برای پذیرش اجتماعی جمع کننده های ضایعات-2017
The structure of reverse logistics for waste electrical and electronic equipment (WEEE) is essential to minimize the impacts of their improper disposal. In this context, the Brazilian Solid Waste Policy (BSWP) was a regulatory milestone in Brazil, submitting WEEE to the mandatory implementation of reverse logistics systems, involving the integration of waste pickers on the shared responsibility for the life cycle of products. This article aims to measure the impact of such legal incentives and the bargain ing power obtained by the volume of collected waste on the effective formalization of waste pickers. The proposed model evaluates the sustainability of supply chains in terms of the use of raw materials due to disposal fees, collection, recycling and return of some materials from desktops and laptops using system dynamics methodology. The results show that even in the absence of bargaining power, the formalization of waste pickers occurs due to legal incentives. It is important to ensure the waste pickers cooperatives access to a minimum amount, which requires a level of protection against unfair competition with com panies. Regarding the optimal level of environmental policies, even though the formalization time is long, it is still not enough to guarantee the formalization of waste picker cooperatives, which is dependent on their bargaining power. Steel is the material with the largest decrease in acquisition rate of raw material.
Keywords: Waste electrical and electronic equipment | Waste pickers | Brazilian solid waste policy |System dynamics |Reverse logistics
مقاله انگلیسی
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