植物新品种创新的区域差异与影响因素研究

A Study of the Regional Differences and Influencing Factors of New Plant Variety Innovation

基于2000-2018年中国粮食主产区植物新品种创新省际面板数据,对比分析东北、华东和华中地区植物新品种创新的绝对差异和相对差异,运用固定效应和随机效应模型,实证考察植物新品种创新的区域异质性以及不同区域创新资源要素的影响与差异。研究发现:华中地区品种创新的绝对差异和相对差异最大,东北地区的绝对差异最小,华东地区的相对差异最小;区域之间存在创新资源投入、创新环境和知识产权保护水平等方面的不同,导致品种创新具有明显的异质性特征。为此,各省、自治区应结合自身发展实际,有的放矢地制定实施提高品种创新水平的政策措施,充分发掘创新资源投入要素、知识产权保护以及创新环境等对域内品种创新发展的重要作用。

Based on provincial panel data of new plant variety innovation in China's main grain-producing areas from 2000 to 2018,applying a comparative analysis of absolute and relative differences of varieties innovation in the northeast,east and central China,and using fixed and random effect models,the article empirically investigates the regional heterogeneity of new plant variety innovation and the impact and differences of innovation resource elements in different regions.The results show that the absolute and relative differences of the variety innovations in central China are the largest,the absolute differences in the northeast are the smallest,and the relative differences in the east are the smallest.There exist differences in innovation resource input,innovation environment and intellectual property protection between regions,which leads to the obvious heterogeneity characteristics of variety innovation.Therefore,each province or autonomous region should combine its own development reality,formulate and implement policies and measures to improve the new plant variety innovation in a targeted manner,and fully explore the important role of innovation resource input factors,intellectual property protection and innovation environment in the development of new plant variety innovation in the region.