关键词: 要素集聚, 研发强度, 研发效率, 门槛效应

Abstract: R&D spillover effect and the spatial heterogeneity make the R&D of agglomeration and efficiency relationship more complicated. In this paper, based on the spatial heterogeneity of angle, applies the spatial panel model and the threshold panel model and inspects nonlinear space contact on R&D agglomeration and efficiency. The empirical results show that R&D agglomeration and efficiency present non balanced distribution in space, the enhancing effect of agglomeration and R&D efficiency depends on the intensity of investment and R&D agglomeration level, R&D investment intensity. R&D agglomeration of R&D efficiency promotion effect is more obvious, and R&D agglomeration and R&D efficiency between the inverted "U" relation. R&D agglomeration reaches a specific value. R&D agglomeration will restrain the development efficiency. The obvious policy implies that the government should continue to increase investment in R&D strength, and not blindly raise R&D agglomeration, should implement differentiation strategy of improving R&D efficiency according to the actual situation in the region.

Key words: R&D agglomeration, investment intensity;R&D efficiency;threshold effect