Two-Echelon Supply Chain Model in an Imperfect Production with Stochastic Demand Considering the Rework of the Defective Items

2020 ◽  
pp. 423-433
Author(s):  
Sujata Saha ◽  
Tripti Chakrabarti
Keyword(s):  
Supply Chain ◽  
Stochastic Demand ◽  
Chain Model ◽  
Defective Items ◽  
Imperfect Production ◽  
Supply Chain Model

Two-echelon imperfect production fuzzy supply chain model for reliability dependent demand with probabilistic deterioration and rework

2021 ◽  
pp. 1-15
Author(s):  
Sudip Adak ◽  
G.S. Mahapatra
Keyword(s):  
Supply Chain ◽  
Production Rate ◽  
Production Cost ◽  
Idle Time ◽  
Chain Model ◽  
Specific Time ◽  
Defective Items ◽  
Imperfect Production ◽  
Supply Chain Model ◽  
Dependent Demand

This paper develops a fuzzy two-layer supply chain for manufacturer and retailer with defective and non-defective types of products. The manufacturer produces up to a specific time, including faulty and non-defective items, and after the screening, the non-defective item sends to the retailer. The retailer’s strategy is to do the screening of items received from the manufacturer; subsequently, the perfect quality items are used to fulfill the customer’s demand, and the defective items are reworked. The retailer considers that customer demand is time and reliability dependent. The supply chain considers probabilistic deterioration for the manufacturer and retailers along with the strategies such as production rate, unit production cost, cost of idle time of manufacturer, screening, rework, etc. The optimum average profit of the integrated model is evaluated for both the cases crisp and fuzzy environments. Managerial insights and the effect of changes in the parameters’ values on the optimal inventory policy under fuzziness are presented.

Supply chain models with imperfect quality items when end demand is sensitive to price and marketing expenditure

2018 ◽  
Vol 52 (3) ◽  
pp. 725-742 ◽  
Author(s):  
Rita Yadav ◽  
Sarla Pareek ◽  
Mandeep Mittal
Keyword(s):  
Supply Chain ◽  
Stackelberg Game ◽  
Solution Concept ◽  
Unit Price ◽  
Chain Model ◽  
Screening Process ◽  
Defective Items ◽  
Imperfect Quality ◽  
Theoretical Approaches ◽  
Supply Chain Model

This paper studies supply chain model for imperfect quality items under which unit price and unit marketing expenditure imposed by the buyer, regulates the demand of the item. It is presumed that with the accustomed supply chain model, all produced items are of good quality, coincidentally, it engrosses some percentage of defective items. Thus, inspection process becomes essential for the buyer to segregate the defective items, which are then sold at discounted price at the end of the screening process. In this paper, a supply chain model is ensued to substantiate the interaction and democracy of the participants in the supply chain, the buyer and seller, is pitched by non-cooperative and cooperative game theoretical approaches. In the non-cooperative method, the Stackelberg game approach is used in which one player behaves as a leader and another one as a follower. The co-operative game approach is based on a Pareto efficient solution concept, in which both the players work together to enhance their profit. Lastly, to demonstrate the significance of the theory of the paper, numerical examples including sensitivity analysis are presented.

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