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Open AccessArticle

Using Fuzzy Sets and Markov Chain Method to Carry out Inventory Strategies with Different Recovery Levels

1
Department of Industrial Engineering and Management, National Chin-Yi University of Technology, Taichung 41170, Taiwan
2
Department of International Business, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
*
Author to whom correspondence should be addressed.
Symmetry 2020, 12(8), 1226; https://doi.org/10.3390/sym12081226
Received: 7 June 2020 / Revised: 23 July 2020 / Accepted: 24 July 2020 / Published: 26 July 2020
In this study, we first analyze the usability of recycling products, and use the fuzzy set method to determine the main impact on recycling items and their corresponding weights by using the Analytic Hierarchy Process (AHP) to identify various impact recycling levels. The Group Decision Supporting System (GDSS) determines the test standards for the recycling rating. It provides a convenient way for recyclers or manufacturers to classify their own products and use fuzzy numbers to select a set of test standards. It can deduce the recovery rate and remanufacturing rate of different recycling processing levels through the Markov chain model to find out the inventory model and total cost. In the numerical analysis, we found that a recycling rate of more than 90% is probably a necessary decision. Since the processing cost of the 100% recovery rate is doubled, the inventory level and total cost will increase with it. Therefore, this study was combined with the reverse logistics method to find the appropriate decision-making strategy and plan, such as the optimal inventory level and recovery rate. View Full-Text
Keywords: green supply chain; reverse logistics; inventory; fuzzy; markov chain green supply chain; reverse logistics; inventory; fuzzy; markov chain
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MDPI and ACS Style

Ho, T.-F.; Lin, C.-C.; Lin, C.-L. Using Fuzzy Sets and Markov Chain Method to Carry out Inventory Strategies with Different Recovery Levels. Symmetry 2020, 12, 1226. https://doi.org/10.3390/sym12081226

AMA Style

Ho T-F, Lin C-C, Lin C-L. Using Fuzzy Sets and Markov Chain Method to Carry out Inventory Strategies with Different Recovery Levels. Symmetry. 2020; 12(8):1226. https://doi.org/10.3390/sym12081226

Chicago/Turabian Style

Ho, Tseng-Fung; Lin, Chi-Chung; Lin, Chih-Ling. 2020. "Using Fuzzy Sets and Markov Chain Method to Carry out Inventory Strategies with Different Recovery Levels" Symmetry 12, no. 8: 1226. https://doi.org/10.3390/sym12081226

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