An integrated JIT inventory model for supply chain management: single supplier-single buyer with multiple products

2006 ◽  
Author(s):  
Esmail. Mehdizadeh ◽  
Mohammad. J. Tarokh
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Inventory Model ◽  
Chain Management ◽  
Multiple Products

scholarly journals Implementing Green Supply Chain Management for Online Pharmacies through a VADD Inventory Model

2019 ◽  
Vol 16 (22) ◽  
pp. 4454 ◽  
Author(s):  
Yan-Kwang Chen ◽  
Fei-Rung Chiu ◽  
Yu-Cheng Chang
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Solution Procedure ◽  
Inventory Model ◽  
Green Supply Chain Management ◽  
Green Supply Chain ◽  
Chain Management ◽  
Web Interfaces ◽  
Online Pharmacy ◽  
Online Pharmacies

Online pharmacies are an important part of the modern healthcare system. They interact with customers through well-designed web interfaces to deliver the healthcare customers need. In addition to well-designed web interfaces, online pharmacies rely on an effective supply chain system to provide medical supplies and services, and especially effective inventory management for supply systems. As green supply chain management (GSCM) becomes increasingly considered by countries, how to develop a sustainable inventory model that takes into account the revenue growth of an online pharmacy while preventing waste and reducing energy costs has become very important. In line with this trend, the study develops a sustainable inventory model that focuses on both economic aspect (profit) and environmental aspect (losses from excessive inventory) within a framework of a single period multi-product inventory model. Specifically, the sustainable inventory model applies the visual-attention-dependent demand (VADD) rate to characterize customer demand in an online trading environment, thereby seeking a profitable marketing strategy and reducing losses due to excessive inventory. Since the complexity of model optimization will drastically increase due to the inclusion of many products in the problem, a Genetic Algorithm (GA) based solution procedure is proposed to increase the feasibility of the proposed model in solving real problems. The sustainable inventory model and the solution procedure are illustrated, compared, and discussed with an online pharmacy example. Additionally, a sensitivity analysis is formulated to study the influence of model parameters on the model solution, the loss of unsold inventory that results in a waste of resources and energy, and the profit of online pharmacies.

scholarly journals An imperfect production inventory model with advance payment and credit period in a two-echelon supply chain management

2020 ◽  
Author(s):  
J.K. DEY ◽  
Barun Khara ◽  
Shyamal Kumar Mondal
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Inventory Model ◽  
Production Cycle ◽  
Optimum Number ◽  
Chain Management ◽  
Purchasing Cost ◽  
Imperfect Production ◽  
Advance Payment ◽  
Production Inventory

This paper presents an integrated imperfect production inventory model under two layer supply chain management. To ensure the orders, manufacturer convinces the retailer to pay a percentage of the purchasing cost prior to replenish the products and offers the facilities such as (i) delay in payment on the remaining part of the purchasing cost and (ii) free transportation on the basis of advance payment amount. Time dependent development cost is incurred to maintain the reliability of the production system and as a result it reduces the imperfectness of the product during production. Under such circumstances, an integrated profit function has been developed to find the optimum number of production cycle, optimum number of replenishment cycle and hence reliability parameter of the manufacturing system, replenishment quantity for the retailer which maximize the integrated profit. Branch and Bound technique is used to obtain the integer solutions. Furthermore, we derived some useful lemmas and algorithms to obtain the optimum solution. Finally, the model has been illustrated with some numerical examples exploring the sensitivity analysis with respect to some parameters and obtains some managerial insights.

scholarly journals Fuzzy inventory model for NVOCC’s returnable containers under empty container repositioning with leasing option

2021 ◽  
Author(s):  
S. Rajeswari ◽  
C. Sugapriya ◽  
D. Nagarajan
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Vital Role ◽  
Inventory Model ◽  
Empty Container ◽  
Chain Management ◽  
Empty Container Repositioning ◽  
Fuzzy Inventory ◽  
The Cost ◽  
Fuzzy Inventory Model

AbstractAt present, the entire globe gets engaged in importing and exporting the products for promoting their business in which supply chain management is playing a vital role. The main aspect of any effective supply chain management is the transportation of cargoes. To avoid the damages of cargoes during transportation and for minimizing the cost, the returnable containers are used. The present research deals with an inventory model of Non-Vessel Operating Common Carrier (NVOCC) for returnable containers with price dependent demand under fuzzy environment. In this study, it is presumed that the import of cargoes is less than the export. The Empty Container Repositioning (ECR) and the leasing options are utilized to replace the deficit containers which prevent shortages. The proportion of the used containers returned, the proportion of the repositioned containers and the fraction of repairable from the returned containers are considered as Triangular Fuzzy Numbers [TFNs]. Fuzzy inventory model is framed for the purpose of attaining optimal length of the screening, the repositioning cycle and the leasing cycle which are used to minimize the expected total cost and the proposed model is illustrated with the numerical example. The sensitivity analysis is performed to show the effect of fuzziness of return rate, repositioning rate and repairable percentage along with the changes in parameters.

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