It is assumed that the platform retailer sells new products,and for remanufactured products,considering two modes of platform retailer sales and manufacturer direct sales through the platform,the corresponding remanufacturing sales channel model is constructed.The Lagrangian function is constructed by Karush-Kuhn-Tucker conditions to obtain the optimal decision-making region of manu-facturers and platform retailers,and the decision-making preferences of different supply chain mem-bers to the sales channels of remanufactured products are analyzed.Numerical simulation results show that manufacturers always tend to sell both new products and remanufactured products by platform re-tailers in the decision-making of remanufacturing sales channels considering platform retailers.The decision-making of platform retailers depends on remanufacturing costs.When the cost of remanufac-turing is small,platform retailers tend to sell new products and remanufactured products at the same time;otherwise,they tend to sell only new products and provide manufacturers with a platform to sell remanufactured products directly.
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