Existed researches on resources investment decisions in cooperated new product development always omit the enterprise's knowledge level, often ignore the impact of knowledge resources on the value of new products and cooperation. Based on the existing research on transactional behavior among supply chain enterprises, most of them consider the transaction of physical substances and less consider knowledge resources, this paper takes the cooperated R & D among enterprises as an example to explore the optimal resource investment decisions of cooperative participants under the condition that both parties invest knowledge resources. By constructing the Stackelberg game model, we discussed the optimal cooperative decisions of manufacturers and suppliers, and the influences of different factors on cooperative decision-making.

To improve the response to customers ' demand

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This paper discusses the closed-loop supply chain which is composed of a manufacturer, a retailer and the third-party recycler, the market dominated by manufacturer. Consumer conveys different preference for new products and remanufactured products. From this base, we segment markets and determine the market demand of different products. Then, we set up a closed-loop supply chain with the third party collecting decision-making model, the problem of different members of the optimal decision is discussed. Finally, the influence of consumer preference on sale price, wholesale price, recovery rate and profits is discussed through a numerical example analysis.

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