Integrated vendor-buyer inventory model in a supply chain with variable lead time and setup cost reduction

2019 ◽  
Vol 9 (3) ◽  
pp. 323
Author(s):  
R. Uthayakumar ◽  
S. Hemapriya
Keyword(s):  
Supply Chain ◽  
Cost Reduction ◽  
Lead Time ◽  
Inventory Model ◽  
Setup Cost ◽  
Setup Cost Reduction

scholarly journals A Two-Echelon Supply Chain Management With Setup Time and Cost Reduction, Quality Improvement and Variable Production Rate

Mathematics ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 328 ◽  
Author(s):  
Bikash Dey ◽  
Biswajit Sarkar ◽  
Sarla Pareek
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Production Rate ◽  
Cost Reduction ◽  
Lead Time ◽  
Setup Cost ◽  
Chain Management ◽  
The Impact ◽  
Variable Production ◽  
Setup Cost Reduction

This model investigates the variable production cost for a production house; under a two-echelon supply chain management where a single vendor and multi-retailers are involved. This production system goes through a long run system and generates an out-of-control state due to different issues and produces defective items. This model considers the reduction of the defective rate and setup cost through investment. A discrete investment for setup cost reduction and a continuous investment is considered to reduce the defective rate and to increase the quality of products. Setup and processing time are dependent on lead time in this model. The model is solved analytically to find the optimal values of the production rate, safety factors, optimum quantity, lead time length, investment for setup cost reduction, and the probability of the production process going out-of-control. An efficient algorithm is constructed to find the optimal solution numerically and sensitivity analysis is given to show the impact of different parameters. A case study and different cases are also given to validate the model.

An integrated inventory model involving discrete setup cost reduction, variable safety factor, selling price dependent demand, and investment

2019 ◽  
Vol 53 (1) ◽  
pp. 39-57 ◽  
Author(s):  
Bikash Koli Dey ◽  
Biswajit Sarkar ◽  
Mitali Sarkar ◽  
Sarla Pareek
Keyword(s):  
Safety Factor ◽  
Cost Reduction ◽  
Lead Time ◽  
Integrated Model ◽  
Inventory Model ◽  
Selling Price ◽  
Setup Cost ◽  
Integrated Inventory Model ◽  
Integrated Inventory ◽  
Setup Cost Reduction

This paper develops a sustainable integrated inventory model for maximizing profit with a controllable lead time, discrete setup cost reduction, and consideration of environmental issues. Contrary to the available literature, this paper considers a discrete setup cost for the vendor, thus making the integrated model sustainable. The customer’s demand is assumed to be selling-price dependent to increase the number of sales, and the lead time demand follows a Poisson distribution. The integrated model is used to optimized the total shipment number, volume of shipments, safety factor, investments, selling-price, and probability of moving between the “in-control” to “out-of-control” states. An algorithm is developed to obtain the numerical results. Numerical examples and sensitivity analyses are given to illustrate the model.

The effect of human errors on an integrated stochastic supply chain model with setup cost reduction and backorder price discount

2020 ◽  
Vol 226 ◽  
pp. 107643 ◽  
Author(s):  
Sunil Tiwari ◽  
Nima Kazemi ◽  
Nikunja Mohan Modak ◽  
Leopoldo Eduardo Cárdenas-Barrón ◽  
Sumon Sarkar
Keyword(s):  
Supply Chain ◽  
Cost Reduction ◽  
Chain Model ◽  
Price Discount ◽  
Setup Cost ◽  
Human Errors ◽  
Supply Chain Model ◽  
Setup Cost Reduction

scholarly journals Effect of Electrical Energy on the Manufacturing Setup Cost Reduction, Transportation Discounts, and Process Quality Improvement in a Two-Echelon Supply Chain Management under a Service-Level Constraint

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3733 ◽  
Author(s):  
Irfanullah Khan ◽  
Jihed Jemai ◽  
Han Lim ◽  
Biswajit Sarkar
Keyword(s):  
Supply Chain ◽  
Quality Improvement ◽  
Energy Consumption ◽  
Cost Reduction ◽  
Electrical Energy ◽  
Service Level ◽  
Chain Model ◽  
Electrical Energy Consumption ◽  
Setup Cost ◽  
Setup Cost Reduction

The need for efficient electrical energy consumption has greatly expanded in the process industries. In this paper, efforts are made to recognize the electrical energy consumption in a two-echelon supply chain model with a stochastic lead-time demand and imperfect production, while considering the distribution free approach. The initial investments are made for quality improvement and setup cost reduction, which ultimately reduce electrical energy consumption. The inspection costs are considered in order to ensure the good qualities of the product. Centralized and decentralized strategies are used to analyze the proposed supply chain model. The main objective of this study is to reduce the overall cost through efficient electrical energy consumption in supply chain management by optimizing the lot size, the number of shipments, the setup cost, and the failure rate. A quantity-based transportation discount policy is applied to reduce the expected annual costs, and a service-level constraint is incorporated for the buyer to avoid a stockout situation. The impact of the decision variables on the expected total costs is analyzed, and sensitivity analysis is carried out. The results show a significant reduction in overall cost, with quality improvement and setup cost reduction ultimately reducing electrical energy consumption.

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