Abstract: In the perspective of innovation quantity and quality, we examine the interaction between independent research and development (R&D) and collaborative innovation and their respective performance by using the statistical data of China’s high technology industries, panel data model, panel threshold regression model and Bayesian vector autoregressive model. The results show that independent R&D contributes more to innovation quantity than innovation quality, and the interaction among them is good in general. Collaborative innovation has little effect on either innovation quantity or quality, and the interaction among them is faint. The coordination between the two remains to be improved. The contribution of independent R&D to innovation quantity has strong characteristics of scale economies, while that of collaborative innovation has weak characteristics of scale economies. The influence of independent R&D on innovation quality presents certain characteristics of scale economies, while that of collaborative innovation almost has none. In terms of innovation quantity, the input and labor force of independent R&D can complement each other, while the input and labor force of collaborative innovation complement each other only in the case of low innovation quantity. In terms of the innovation quality, the input and labor force of independent R&D are complementary with each other, while those of collaborative innovation are not.

Key words: Key words： innovation quantity, innovation quality, independent R&, D, collaborative innovation