期刊名称：IAENG International Journal of Computer Science
印刷版ISSN：1819-656X
电子版ISSN：1819-9224
出版年度：2021
卷号：48
期号：3
语种：English
出版社：IAENG - International Association of Engineers
摘要：This paper studies a two-echelon innovative product supply chain composed of two suppliers and one retailer, where one supplier provides a spot purchase based on a wholesale price contract and the other provides an option contract. In terms of the different characteristics of spot and option contracts, a single purchasing model and a mixed purchasing model under fuzzy demand are established respectively. Triangular fuzzy numbers (TFNs) are applied to describe the uncertain demand of innovative products and the conditional value-at-risk (CVaR) method is used to express the profits of risk-averse retailers. The results show that the mixed procurement decision under fuzzy demand can significantly improve the flexibility of procurement execution and the profits of retailers. Interestingly, we find that, the spot order quantity in the mixed procurement has nothing to do with the retail price of the product, but decreases as the wholesale cost of the product increases. Additionally, numerical examples further indicate that, compared with the risk-neutral retailer, the risk-averse retailer’s decision-making behavior is more conservative, and its total order quantity is less influenced by the fuzziness of the market demand and other model parameters.
