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本文使用中国电子及通信设备制造业2005-2014年面板数据分析了该行业R&D效率的影响因素,从该行业的大型企业和中小企业两个维度进行了实证。结果表明:大型企业在内部研发方面对R&D产出变量——专利产出和主营业务收入都有正向促进作用;大型企业R&D外部投入的增加对主营业务收入也有显著的提高,但对专利产出的作用并不显著。中小企业外部经费投入各项比例不协调导致效率较低。因此,大型企业应当注重R&D外部经费投入对专利产出的影响,中小企业应当立足于提高R&D外部经费投入的质量及均衡性,同时提高自主研发能力。
This paper analyzes the factors that affect the R & D efficiency of the industry from the panel data of China’s electronic and communications equipment manufacturing industry from 2005 to 2014. Empirical studies are made on the two dimensions of large-scale enterprises and small-medium enterprises in the industry. The results show that: large-scale enterprises have a positive role in R & D output variables - patent output and main business revenue in the internal R & D; large R & D external investment increased significantly on the main business revenue, but The role of patent output is not significant. The inconsistency in the proportion of SMEs’ external funding led to lower efficiency. Therefore, large enterprises should pay attention to the impact of external R & D investment on patent output, and SMEs should base their efforts on improving the quality and balance of R & D external funding and improving independent R & D capabilities.