经济增长动力是研发的直接效应还是溢出效应——基于改进菲德模型的研究  

Is the Impetus of Economic Growth the Direct Effect or the Spillover Effects of R&D?——Based on Modified Dynamic Feder Model

作　　者：华锐[1,2] 庄子银 Hua Rui;Zhuang Ziyin(Economic and Management School,Wuhan University,Wuhan 430072,China;Statistic School,Hubei Science and Technology University,Xianning 437000,China)

机构地区：[1]武汉大学经济与管理学院,湖北武汉430072 [2]湖北科技学院数学与统计学院,湖北咸宁437000

出　　处：《科技进步与对策》2018年第6期29-35,共7页Science & Technology Progress and Policy

基　　金：国家自然科学基金项目(71273201);国家社会科学基金重大项目(13&zd020)

摘　　要：通过改进的菲德模型,分离出研发的直接效应和溢出效应,分别讨论了研发的总效应、直接效应和溢出效应与经济增长的关系,最终识别出经济增长的动力。理论模型表明:研发的溢出效应促进经济增长,而研发的直接效应与经济增长的关系取决于在要素边际收益上研发部门与生产部门的相对大小;短期内,研发与经济增长的关系不明确,但长期看,研发驱动经济增长,动力来自研发的溢出效应;应用研发始终促进经济增长,而基础研发与经济增长的关系不明确;经济政策不会改变研发的溢出效应,但可以改变研发的直接效应,进而影响经济增长。实证分析表明:中国经济增长的动力来自基础研发的溢出效应和应用研发的直接效应。Based on the direct and spillover effects of R&D which are separated by the modified dynamic Feder model,this thesis discusses respectively the relationships between the total effect,direct effect and spillover effect of the basic R&D and application R&D and economic growth,thus identifying the impetus of economic growth.The model shows that,although the spillover effect of R&D promotes economic growth,the relationship between the direct effect of R&D and economic growth depends on the relative size of R&D sector and product sector relating to marginal revenue of facts;the relationship between R&D and economic growth is not clear in the short term,but in the long term,R&D drives economic growth,whose impetus is the spillover effect of R&D;the application R&D does promote economic growth,while the relation between the basic output and economic growth isn't clear;economic policy will not change the spillover effect of R&D,but can change the direct effect of R&D,thereby affecting economic growth.Empirical analysis shows that the economic growth in China is propelled by the spillover effect of basic R&D and the direct effect of application R&D.

关 键 词：经济增长 基础研发 应用研发 溢出效应 菲德模型 

分 类 号：F124.3[经济管理—世界经济]