scholarly journals Effects of Preservation Technology Investment on Waste Generation in a Two-Echelon Supply Chain Model

Mathematics ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 189 ◽  
Author(s):  
Mehran Ullah ◽  
Biswajit Sarkar ◽  
Iqra Asghar
Keyword(s):  
Supply Chain ◽  
Integrated System ◽  
Environmental Benefits ◽  
Production Cycle ◽  
Decision Variable ◽  
Chain Model ◽  
Lot Size ◽  
Technology Investment ◽  
Preservation Technology ◽  
Production Inventory

This study develops an integrated production-inventory model for a two-echelon supply chain network with controllable probabilistic deterioration. The investment in preservation technology is considered a decision variable to control the deteriorated quantity of an integrated system. The objective of the study is to optimize preservation investment, the number of shipments and shipment quantity, so that the total cost per unit of time of the supply chain is minimized. The study proposes a solution method, and the results show that investment in preservation technology reduces the total supply chain cost by 13%. Additionally, preservation increases the lot size, thus increasing the production cycle length, which reduces the ordering cost of the system. Furthermore, this study shows that preservation leads to a reduction of solid waste from deteriorated products. Total deteriorated products reduced to 8 units from 235 units, hence, preservation generates positive environmental benefits along with economic impacts. The robustness of the proposed model is illustrated with a numerical example, sensitivity analysis, and graphical representations. Moreover, comparative study and managerial insights are given to extract significant insights from the model.

scholarly journals Optimal Pricing and Ordering Policy for Two Echelon Varying Production Inventory System

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Brojeswar Pal ◽  
Shib Sankar Sana ◽  
Kripasindhu Chaudhuri
Keyword(s):  
Supply Chain ◽  
Raw Materials ◽  
Chain Model ◽  
Selling Price ◽  
Lot Size ◽  
Ordering Policy ◽  
Supply Chain Model ◽  
Production Inventory ◽  
Test Feasibility ◽  
Optimal Ordering

The paper proposes a two-stage supply chain model for price sensitive demand in imperfect production system while manufacturer and supplier are the members of the chain. The supplier screens the raw materials first and supplies good materials to the manufacturer at a constant rate. The production rate varies randomly within a finite interval. The inventory cycle of the manufacturer starts with shortages and production and it finishes with shortages again, in which shortages are partially backlogged. We consider a mixture of LIFO (last in, first out) and FIFO (first in, first out) dispatching policies to fill the backlogged demand. Thus, the objective of the proposed paper is to determine the optimal ordering lot-size and selling price of the manufacturer such that the per unit average integrated expected profit of the supply chain model is maximized. A numerical example is provided to analyze and illustrate the behavior and application of the model. Finally, sensitivity analysis of the key parameters are presented to test feasibility of the model.

scholarly journals Two-phase deteriorated supply chain model with variable demand and imperfect production process under two-stage credit financing

2021 ◽  
Author(s):  
Brojeswar Pal ◽  
Anindya Mandal ◽  
Shib Sankar Sana
Keyword(s):  
Supply Chain ◽  
Integrated System ◽  
Chain Model ◽  
Market Demand ◽  
Lot Size ◽  
Credit Policy ◽  
Two Phase ◽  
Quality Improvement Effort ◽  
Promotional Effort ◽  
Imperfect Production

In this article, an imperfect production inventory model consisting of a manufacturer and a retailer with quality improvement effort and the promotional effort sensitive demand pattern is investigated under a two-tier credit policy. We study the model for deteriorating items where the deterioration occurs at different rates in the manufacturer’s and the retailer’s level considering a fixed lifetime of the product. Discussing the six possible cases of credit policy analytically, we analyze the behavior of the model under an integrated system concerning production lot-size, quality effort and promotional effort such that the integrated average profit is maximum. To obtain the optimal solutions of the model, we design an operative solution algorithm. A numerical example is provided to test feasibility of the model, and the effect of the variation of the key parameters is also studied. The outcomes of this proposed model show that the manufacturer and the retailer have to be more careful about their offered credit periods in aspect of the profit. It is observed that the integrated profit is maximum when both credit periods provided by the manufacturer and the retailer belong to the manufacturer’s cycle. Moreover, we identify that the extended product lifetime does not meet with higher profit all times. This study directs that quality effort and promotional effort stimulate the market demand while it is not always economically profitable for the supply chain.

scholarly journals The Impact of RFID Investment on Complex Product in Three-Level Assembly Supply Chain

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Wei Xu ◽  
Zhaotong Lian ◽  
Xifan Yao
Keyword(s):  
Information Technology ◽  
Supply Chain ◽  
Supply Chain Coordination ◽  
Stackelberg Games ◽  
Optimal Decision ◽  
Chain Model ◽  
Complex Product ◽  
Coordination Model ◽  
Technology Investment ◽  
The Impact

Motivated by the complex product with the feature about error-prone assembly system and supply chain inventory inaccuracy, this paper elaborates on the impact of information technology investment on complex product by establishing a three-stage supply chain model involving two suppliers, one manufacturer, and retailer which carried out Stackelberg games. In addition, it not only compares the manufacturer and the retailer’s optimal decision and maximum profit under the situation of the information asymmetry and free information sharing, but also analyzes their market behavior and changes in market performance. Meanwhile, it points out that the downstream in supply chain masters more information about market demands compared to the upstream one. The optimal cost threshold values of technology investment are also examined both for the centralized and the decentralized scenarios utilizing quantitative and modeling methods. By analyzing and comparing the optimal profit with or without investment on information technology, it establishes a supply chain coordination model which boosts the application of information technology. At the same time, it offers the conditions on which the upstream and downstream enterprises can coordinate with one another. The results of this paper have contributed significantly to making the price and ordering decisions on whether RFID should be adopted among members of the supply chain. Finally, we present numerical analyses, and several extensions of the model are considered as well.

scholarly journals A Production Inventory Model for Deteriorating Items with Collaborative Preservation Technology Investment Under Carbon Tax

2019 ◽  
Vol 11 (18) ◽  
pp. 5027 ◽  
Author(s):  
Shen ◽  
Shen ◽  
Yang
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Emissions ◽  
Carbon Tax ◽  
Inventory Model ◽  
Gas Emissions ◽  
Technology Investment ◽  
Preservation Technology ◽  
Production Inventory ◽  
Preservation Technology Investment

The increase in carbon emissions is considered one of the major causes of global warming and climate change. To reduce the potential environmental and economic threat from such greenhouse gas emissions, governments must formulate policies related to carbon emissions. Most economists favor the carbon tax as an approach to reduce greenhouse gas emissions. This market-based approach is expected to inevitably affect enterprises’ operating activities such as production, inventory, and equipment investment. Therefore, in this study, we investigate a production inventory model for deteriorating items under a carbon tax policy and collaborative preservation technology investment from the perspective of supply chain integration. Our main purpose is to determine the optimal production, delivery, ordering, and investment policies for the buyer and vendor that maximize the joint total profit per unit time in consideration of the carbon tax policy. We present several numerical examples to demonstrate the solution procedures, and we conduct sensitivity analyses of the optimal solutions with respect to major parameters for identifying several managerial implications that provide a useful decision tool for the relevant managers. We hope that the study results assist government organizations in selecting a more appropriate carbon emissions policy for the carbon reduction trend.

Multiple Deliveries of Two-Warehouse Deteriorating Production-Inventory Model

2013 ◽  
Vol 684 ◽  
pp. 634-638
Author(s):  
Hsiao Ching Chen ◽  
Yao Hung Hsieh
Keyword(s):  
Supply Chain ◽  
Optimization Technique ◽  
Optimal Solution ◽  
Inventory Model ◽  
Integrated System ◽  
Discounted Cash Flow ◽  
Supply Chain System ◽  
Partial Backordering ◽  
Production Inventory ◽  
Production Inventory System

In this study we develop a two-warehouse deteriorating production-inventory model from the perspectives of both the manufacturer and the retailer. The model considered multiple deliveries, partial backordering and inflation. The discounted cash flow (DSF) and optimization technique are also used to derive the optimal solution. A numerical example is given to validate the results of the whole production-inventory system. This study shows that multiple deliveries of the integrated system results in an optimal solution for the manufacturer-retailer supply chain system.

Sign in / Sign up

Export Citation Format

Share Document