scholarly journals Optimizing a bi-objective location-allocation-inventory problem in a dual-channel supply chain network with stochastic demands

2021 ◽  
Author(s):  
Aida Rezaei ◽  
Tina Shahedi ◽  
Amir Aghsami ◽  
Fariborz Jolai ◽  
Hamidreza Feili
Keyword(s):  
Supply Chain ◽  
Demand Uncertainty ◽  
Test Problems ◽  
Supply Chain Network ◽  
Periodic Review ◽  
Inventory Problem ◽  
Location Allocation ◽  
Dual Channel ◽  
Grasshopper Optimization Algorithm ◽  
Dual Channel Supply Chain

Integrating strategic and tactical decisions to location-allocation and green inventory planning by considering e-commerce features will pave the way for supply chain managers. Therefore, this study provides an effective framework for making decisions related to different levels of the dual-channel supply chain. We provide a bi-objective location-allocation-inventory optimization model to design a dual-channel, multi-level supply chain network. The main objectives of this study are to minimize total cost and environmental impacts while tactical and strategic decisions are integrated. Demand uncertainty is also addressed using stochastic modeling, and inventory procedure is the periodic review . We consider many features in inventory modeling that play a very important role, such as lead time, shortage, inflation, and quality of raw materials, to adapt the model to the real conditions. Since a dual-channel supply chain is becoming more important for sustainable economic development and resource recovery, we combine online and traditional sales channels to design a network. We generate five test problems and solve them by using the augmented ε-constraint method. Also, the Grasshopper optimization algorithm was applied to solve the model in a reasonable time for a large size problem. In order to provide managerial insights and investigate the sensitivity of variables and problem objectives with respect to parameters, sensitivity analysis was performed.

scholarly journals Investigating Inventory Strategy Under Demand Distribution Fluctuation in Dual-Channel Supply Chain

2021 ◽  
Vol 8 ◽  
Author(s):  
Nai-Ru Xu ◽  
Jie Cheng ◽  
Zheng-Qun Cai
Keyword(s):  
Supply Chain ◽  
Inventory Management ◽  
Distribution System ◽  
Demand Uncertainty ◽  
Management Problem ◽  
Market Demand ◽  
Supply Chain System ◽  
Demand Distribution ◽  
Dual Channel ◽  
Dual Channel Supply Chain

When manufacturers construct a dual-channel distribution system, which includes online and offline sales channels, they need to solve the inventory management problem to ensure supply and reduce inventory costs of the supply chain system. The dual-channel supply chain is the research object, and the inventory decision model is designed to achieve optimal profit when market demand is divided into online and offline demands. The results of the numerical analysis and simulations, conducted using MATLAB, indicate that both the manufacturer and the retailer increase their inventories and that their profits decrease when demand uncertainty increases. Besides, the increase in the online demand ratio causes the increase in the manufacturer’s inventory and reduces the profits of the retailer and the entire supply chain.

Modeling Dual-Channel Supply Chain Based on Fuzzy System and Genetic Algorithm

2017 ◽  
Vol 25 (04) ◽  
pp. 573-598
Author(s):  
Amin Mahmoudi ◽  
Hassan Shavandi ◽  
Mohammad Reza Vakili
Keyword(s):  
Genetic Algorithm ◽  
Supply Chain ◽  
Fuzzy System ◽  
Fuzzy Systems ◽  
Test Problems ◽  
Chain Model ◽  
Dual Channel ◽  
Supply Chain Model ◽  
Hybrid Solution ◽  
Dual Channel Supply Chain

In this paper, we have proposed a dual-channel supply chain model in uncertain environment to analyze the demand of manufacturer and retailer demand in which the profit being maximized. Linguistic terms are also utilized to establish two fuzzy systems for estimating the demand in direct and retail channels. In order to do that, a mathematical model is proposed based on decentralized situation of supply chain. To solve the model, we have developed a hybrid solution method of genetic algorithm, fuzzy system, and L-P metric. Finally, several test problems are first generated; then, the computational results are analyzed.

Multi-Objective Optimization for Green Dual-Channel Supply Chain Network Design Considering Transportation Mode Selection

2018 ◽  
Vol 11 (3) ◽  
pp. 1-21 ◽  
Author(s):  
Hong Zhang ◽  
Kuan Yang
Keyword(s):  
Supply Chain ◽  
Environmental Performance ◽  
Mode Selection ◽  
Supply Chain Network ◽  
Transportation Mode ◽  
Trade Off ◽  
Multi Objective ◽  
Dual Channel ◽  
Transportation Mode Selection ◽  
Dual Channel Supply Chain

A well-designed supply chain network should not only meet the efficient cost but also realize the sustainable effect on environment. The purpose of this article is to develop a multi-objective model to capture the trade-off between total cost and environmental performance in the green dual-channel supply chain network. Moreover, the transportation mode has been considered as a decision variable. With regard to the complexity of such network, a new swarm intelligence algorithm known as a multi-objective particle swarm optimization (MOPSO) algorithm has been employed to tackle this problem. The effectiveness of the present model and approach is evaluated by a numerical experiment, and the results show that the added environmental performance is actually proportional with the increased cost. Additionally, the comparison between different mode decisions shows that a better trade-off between two objectives will be obtained when considering the transportation mode selection.

Pricing and Inventory Strategy of Dual-channel Supply Chain under Random Demand and Retailer's Capital Constraint

2015 ◽  
Vol 9 (1) ◽  
pp. 30-46 ◽  
Author(s):  
Hehua Fan ◽  
Yongwei Zhou
Keyword(s):  
Supply Chain ◽  
Demand Uncertainty ◽  
Distribution Channels ◽  
Optimal Pricing ◽  
Supply Chain System ◽  
Profit Model ◽  
Chain System ◽  
Dual Channel ◽  
Inventory Strategy ◽  
Dual Channel Supply Chain

A dual-channel supply chain system composed of one manufacturer and one retailer is considered in this paper, which existed uncertainty demands in both distribution channels and capital constraint on retailer. It set up the profit model of manufacturer dominated dual-channel supply chain system, studied to the optimal pricing and inventory strategies of decentralized and centralized supply chain, obtained the optimal pricing and inventory strategy of the two kinds of supply chain system. The analysis to the optimal solution indicated that the demand uncertainty of two distribution channels, deferred-payment rate etc, are all have certain influence relation on the pricing strategies of manufacturer and retailer. Numerical experiment has showed the effectiveness of the conclusions.

scholarly journals Designing a dual-channel supply chain network considering dependent demand and discount

2020 ◽  
Author(s):  
Fatemeh Fatemeh Askarian Amiri ◽  
Mohammad Mahdi Paydar ◽  
Abdul Sattar Safaei
Keyword(s):  
Supply Chain ◽  
Distribution System ◽  
Sensitivity Analyses ◽  
Model Parameters ◽  
Supply Chain Network ◽  
Dual Channel ◽  
Proposed Model ◽  
Dual Channel Supply Chain ◽  
Direct Market

Nowadays, organizations are faced with the growth of markets, satisfying customers’ demand and empowering in competing with rivals imposed new communication channels.  Along with the rapid advancement of the Internet, many suppliers are interested in creating an electronic channel in addition to the traditional retailer channel for direct market participation. This distribution system which includes retailer channels and direct channels is called a dual-channel supply chain. This study reviews a leather supply chain network that has created a discounted online channel to expand its market share. In this study, a multi-period multi-product mathematical model is developed to maximize the profit and examine the effect of different discount schemes on demand and sales. To verify the proposed model, a real-world case study is conducted. The sensitivity analyses examined the important model parameters. The obtained results show that the responsiveness of the main retailers could be more than 95%. According to the sensitivity analysis, an appropriate discount rate is reported in the direct channel.

Sign in / Sign up

Export Citation Format

Share Document