Influence of the Proportion of Researchers in Pharmaceutical Manufacturing Industry on the Innovation Effect of R&D Investment Based on Threshold Effect Model
OBJECTIVE To investigate the effect of different proportions of researchers in the research and experimental development(R&D)workforce of pharmaceutical manufacturing industry on the relationship between R&D investment and innovation performance.METHODS Inter-provincial panel data of pharmaceutical manufacturing industry in China from 2011-2017 were used as samples,and a panel threshold regression model was established with the proportion of researchers as the threshold variable to explore whether there was a threshold effect in the relationship between R&D investment and innovation performance.RESULTS When the proportion of researchers was used as the threshold variable,there was a significant threshold effect between R&D investment and both innovation performance of patent applications and new product sales income in pharmaceutical manufacturing industry.As the proportion of researchers increased,the contribution of R&D investment to patent applications decreases,and the contribution to new product sales income tends to increase and then decrease.When the proportion of researchers in the R&D manpower team was＞35.182％and ≤38.950％,R&D investment could achieve the optimal output effect on both innovation performance.CONCLUSION The innovation efficiency of R&D team is higher when the proportion of researchers in R&D manpower team of pharmaceutical manufacturing industry is controlled at＞35.182％and ≤38.950％,and the promotion effect of R&D investment on innovation performance is more significant.
pharmaceutical manufacturing industryresearch and experimental developmentproportion of researchersinnovation performancethreshold regression
万方数据
维普
