国际经济与贸易学院知识库

实现区域协调发展是中国区域经济发展的重要目标之一，近年来，我国实施了一系列区域发展战略，经济发展取得了重大成就。但区域发展之间的矛盾仍未解决，伴随着要素的跨区域转移，全国经济活动从分散走向集聚，尤其向核心城市群集聚，区域分化现象明显；且长期以来地区之间受制于较高的内部贸易成本，呈现出各省市“对外贸易偏好强于区际贸易”的经济发展悖论，区域间恶性竞争问题严重，区域经济发展不协调、不充分问题依然突出，谋求区域协调发展新思路已刻不容缓。

在此背景下，首先以区域协调发展的内涵作为本文研究的突破口，认为区域协调发展应推动区域分治向区域统一大市场转变，通过合理的区域分工与合作使各地区各自发挥比较优势形成紧密关联、优势互补的区域分工链条，实现地区间相互支撑、共同成长下的“非均衡性”动态协调的发展过程。基于此，文章进一步从市场协调和产业协调两个方面分析了贸易成本引导区域协调发展的理论机制，贸易成本通过引导市场协调作用于区域协调发展以及通过专业化分工这一中介引导产业协调间接作用于区域协调发展。其次，在理论分析后，选择采用2000-2018年全国31个省（市、区）的面板数据，测算了贸易成本、专业化分工水平，构建区域协调发展水平指标体系，进行实证检验。结果发现：（1）贸易成本显著阻碍了区域协调发展，表明较高的国内贸易成本已然是制约区域协调发展的重要因素；（2）贸易成本对区域协调发展的作用既有显著负向直接影响，也有通过专业化分工所体现出的显著间接影响，专业化分工削弱了贸易成本对区域协调发展的负向影响；（3）分地区检验发现：东部地区和中西部地区贸易成本对区域协调发展均有显著抑制作用。由于贸易成本和开放水平的差异，东部地区负向直接影响大于中西部地区，专业化分工均可以缓解贸易成本对局部区域协调发展的不利影响。有鉴于此，本文认为应进一步降低国内贸易成本，发挥比较优势、实现有效市场和有为政府的有机结合、构建国内价值链，是实现区域协调发展的有效途径。

Realizing regional coordinated development is one of the crucial goals in China. Recently, China has putted a sequence of regional development tactics into practice and made grand accomplishment. However, the regional discrepancy is still not solved. With the trans-regional transfer of factors, the national economic activities are moving from decentralization to agglomeration, especially to the megacity cohesion, and the phenomenon of regional distinction is obvious. For a long time, regions have been subject to high internal trade costs, showing the paradox of economic development of provinces and cities that "foreign trade preference is bigger than domestic trade". The vicious competition among regions is serious, and the puzzler of uncoordinated is still prominent. It is urgent to seek new ideas of regional coordinated development.

In this context, starting from the significance of harmonious development firstly, think regional harmonious development should promote regional partition to single regional market, by making each region of the logical specialization and consociation of each exert comparative advantages to form value chain is closely related, complementary advantages, realize regional support each other, grow together under the unbalance the development of the dynamic coordination. Based on this, the thesis further talk over the mode of  action of trade cost guiding area coordinated development from two aspects of market coordination and industry coordination. Trade cost acts on regional coordinated development by guiding market coordination and indirectly acts on regional coordinated development by specialized division of labor as an intermediary. Secondly, basis on the panel data, the trade cost and specialization level are calculated. Then, the theoretical mechanism is tested. The outcomes are as follows : (1)Trade cost significantly hinders regional coordinated development, indicating that higher domestic trade cost is already an important factor restricting regional coordinated development;(2)The effect of trade costs on regional coordinated development is not only significant negative direct influence, but also significant indirect influence reflected by specialized division of labor. Specialized division of labor weakens the notorious impact of trade costs on area cooperation.(3)The regional test indicates that the trade costs in the eastern and midland and western areas have a remarkable inhibiting impact on coordinated development. Due to the differences in trade cost and opening level, the adverse direct effect of the eastern area is larger than other areas, and the specialized division of labor can alleviate the adverse effect of trade cost on the coordinated development of local areas. In view of this, this paper argues that the resultful method to realize regional harmonious progress is to reduce the cost of domestic trade, give full play to comparative advantages, promote the ideal  consociation of valid market and promising administration, and construct domestic value chain.