知识生产函数、规模报酬和经济增长模式——R&D模型对中国的实证检验  

Knowledge Production Function, Returns to Scale and Economic Growth Pattern:An Empirical Test of R&D Model on China

作　　者：张延[1] 王智强[1] 

机构地区：[1]北京大学经济学院,北京100871

出　　处：《当代财经》2010年第3期25-31,共7页Contemporary Finance and Economics

摘　　要：R&D模型是经济增长理论的一个重要、前沿的部分,它认为技术进步和创新是一个国家经济增长的动力。R&D模型将经济长期增长的源泉归结于知识生产函数中两种投入要素——知识和资本的规模报酬,并且把经济的长期增长模式区分成三种类型:稳定性均衡、非稳定性均衡和半稳定性均衡。文章首次对知识生产函数进行实证检验,以此来判断我国经济增长模式。通过对2004-2006年中国243个城市面板数据的研究,发现中国的经济增长模式属于稳定性均衡的类型,新知识的生产对知识和资本的规模报酬是递减的,经济会在某个增长率稳定下来,劳动力和资本存量中用于研究和开发的比例和储蓄率的上升,在长期内都不会改变这个稳定的增长率。R＆D model, which states that technology improvement and innovation are the engines of a country＇s economic growth, is an important leading edge of economic growth theory. R＆D model dedicates the source of long-run economic growth to the two input factors of knowledge production function： the return to scale of knowledge and capital, and divides the pattern of long-term economic growth into three types： stable equilibrium, non-stable equilibrium and semi-stable equilibrium. This paper for the first time performs an empirical study of the knowledge production function in order to judge the type of China＇s economic growth pattern. Using the panel data of China＇s 243 cities during the years of 2004-2006, this study finds that China＇s economic growth pattern belongs to the type of stable equilibrium; the returns to scale of new knowledge production to knowledge and capital is decreasing; the economy will be stable at one certain growth rate, the proportion of the labor and capital stock for R＆D and the increasing rate of saving will not be able to change the stable growth rate in the long run.

关 键 词：R&D模型 知识生产函数 规模报酬 经济增长模式 

分 类 号：F061.2[经济管理—政治经济学]