设立国家级新区的增长与协同效应研究--基于双重差分法的实证检验

Research on the Growth and Synergy Effect of Establishing National New Districts--An Empirical Test Based on DID Model

国家级新区重启批复以来,已有18个新区获得批复设立。在城市群更大的区域范围内国家级新区的设立起到的增长与协同效应有待检验。实证结果表明不论是设立时间较长的国家级新区还是设立时间较短的国家级新区都能对区域经济发展起到显著的增长效应,但设立时间较短的国家级新区增长效应显著性水平较低,随着建设时间增加,显著性水平和影响作用会增加。设立国家级新区并没有收到应有的人口聚集效应,证明新型城镇化建设方面国家级新区收到的效果不理想。设立时间较早的国家级新区已经对区域发展起到一定的协同效应,但大部分国家级新区都没有对区域发展起到协同效应。未来,国家级新区建设过程中应继续发挥区域增长级的优势,探索新型城镇化建设经验,尤其是在吸引人口和人才向区域中心城市汇集方面,积累国家级新区带动区域协同发展的建设经验。

Since the resumption of the approval of the national new district,18 new districts have been approved. The growth and synergy effect of the establishment of national new districts in the larger region of the urban agglomeration remains to be tested. The empirical results show that whether it is a national new district with a long set-up time or a new national-level new district with a relatively short period of time,it can have a significant growth effect on regional economic development,but the growth effect of the national new district with a short set-up time is more significant. Low,as construction time increases,the level of significance and impact will increase. The establishment of a national-level new district has not received the expected population agglomeration effect,which proves that the effect of the new state-level new district on new urbanization construction is not satisfactory. The establishment of a new national-level district earlier has played a certain synergy effect on regional development,but most of the national-level new districts have not played a synergistic effect on regional development. In the future,the construction of national new districts should continue to take advantage of regional growth levels and explore new urbanization construction experience,especially in attracting population and talents to regional central cities,and accumulating national-level new districts to drive regional collaborative development experience.