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With market complexity and uncertainty intensifying, enterprises are more inclined to adopt cooperative innovation to strengthen their technological innovation capability. Cooperative innovation often involves a large number of upstream and downstream enterprises with their decision-making differences. Based on this, the decision process is divided into: deciding research and development(R&D) investment and determining the final two stages of commodity output. This paper builds different rational levels of upstream and downstream R&D cooperative investment decision-making model. The existence and stability of the system’s equilibrium point and the effect of R&D investment adjustment speed on the system state are discussed based on the analysis of the asymmetry and bounded rationality of R&D efficiency of the upstream and downstream enterprises.

Model Construction and Solution of R&D Investment Decision for Different Rational Level of Upstream and Downstream Enterprises