摘要
从新经济地理学的视角将集聚动态外部性纳入碳生产率空间趋同的分析框架中。研究发现:碳生产率在邻近地域上有明显的连续性和粘滞性,且呈现强局部集聚特征。不论长期还是短期,我国低碳生产率均存在着空间条件β趋同,且存在着显著的俱乐部趋同效应。东部省区显著受惠于邻近省区的正外部性,均向高值收敛,中西部省区显著受到邻近省区的负外部性影响,均向低值收敛。其中,集聚动态外部性是改善碳生产率和实现碳生产率趋同的重要机制。不同集聚程度下不同的集聚形式对应于不同的碳生产率,随着集聚程度的提高,专业化集聚减排效应递减的同时多样化集聚减排效应递增。而且专业化集聚和多样化集聚的减排效应是可以同时存在的,这取决于适宜的集聚程度。东部地区专业化集聚和多样化集聚的减排效应均较显著,而中西部地区仅体现微弱的专业化集聚效应。经验研究表明,在改善碳排放效率方面,集聚生产要优于分散生产,政府应根据不同地区集聚程度和工业发展阶段,采取差异化的工业集聚形式和政策。
From the perspective of new economic geography,the paper puts the agglomeration externalities into the framework of spatial convergence of carbon productivity.The results indicate that：carbon productivity between neighboring regions has characteristics of viscosity and clustering.Whether in the long term or in the short term,carbon productivity presents the effect ofβ conditional convergence and ‘club’ spatial convergence.The eastern provinces benefit from the positive externalities of neighboring provinces significantly and converge to a higher value,while the midwestern provinces are affected by the negative externalities of neighboring provinces and converge to a lower value.Agglomeration externality is an important mechanism to improve carbon productivity and promote convergence.Different forms of agglomeration correspond to different carbon productivity.With the improvement in the level of agglomeration,the effects of specialized agglomeration decreases while diversified agglomeration increases.The emission reduction of specialized agglomeration and diversified agglomeration depends on the proper degree of agglomeration.The emission-reduction effects of specialized agglomeration and diversified agglomeration are significant in the eastern region,while the midwestern regions only reflect the weak specialized agglomeration effect.Empirical studies shows that the agglomeration production is better than the decentralized production in improving the efficiency of carbon emission.The government should take different industrial agglomeration forms and policies according to the different degrees of agglomeration and industrial development stage.
出处
《中国人口·资源与环境》
CSSCI
北大核心
2013年第12期40-47,共8页
China Population,Resources and Environment
基金
国家自然科学基金项目"区域低碳创新网络共生机理和路径仿真"(编号:71373169)
国家自然科学基金项目(编号:71003023)
江苏省"青蓝工程"中青年学术带头人资助计划(编号:苏教师[2012]39号)
江苏省社科基金项目(编号:12EYC009)
关键词
碳生产率
空间趋同
集聚外部性
carbon productivity
spatial convergence
agglomeration externalities
