Cost reduction effects of intra-industry and inter-industry R&D spillovers——empirical research based on micro data of 14,227 enterprises

The article investigates RD spillover effects on productivity using micro data of 14,227 enterprises of Chinese manufacturing industry from the perspective of production cost.To avoid the disadvantage caused by setting functional form in advance,we use the logarithm function model to accurately estimate them.The results show that intra-industry and inter-industry RD spillovers reduce the cost of production.Based on classification samples under the different constraint,the estimation results show that whether the enterprise had R D investment or not and the ownership structure of the enterprise have significant effects on the R D spillover elasticity.