长三角一体化背景下的城市空间联系与规划——基于风险投资活动的研究

URBAN SPATIAL CONNECTION AND PLANNING UNDER THE BACKGROUND OF THE INTEGRATION OF THE YANGTZE RIVER DELTA:A STUDY BASED ON VENTURE CAPITALACTIVITIES

根据2002—2016年长三角城市之间风险投资事件,探究长三角风险投资的空间特征和演变,以及风险投资活动在不同行业的差别。结果表明:长三角城市间已形成了以上海为核心,杭州、苏州和南京为次核心的风险投资网络结构,且行政区划对网络结构有较强塑造作用;不同产业的风险投资网络化程度和演化进程存在差异,传统行业的网络化程度更高,而新兴产业对所在城市的经济基础要求更高;风险投资网络化程度逐渐增强,跨省联系也随之增加,但核心城市地位较为稳固;核心城市的风险投资活动本地倾向较为明显,核心城市有强极化现象,与此同时,溢出效应也已经显现。最后,本文从集聚与扩散、竞争与合作以及主次与均衡3个方面提出了规划启示。

Based on the venture capital(VC)activities in the Yangtze River Delta from 2002 to 2016,this paper explores the spatial characteristics and the evolution of venture capital in the Yangtze River Delta,as well as the differences between emerging and traditional industries.The results show that,fistly,within the venture capital investments in cities across the in the Yangtze River Delta,Shanghai has become the core city,while Hangzhou,Suzhou,as well as Nanjing have become the sub-core cities,in which the administrative division plays an important role in shaping the network structure;secondly,the network connection degree and the evolution of venture capital investment vary in different industries,as traditional industries are more highly connected,and emerging industries have higher requirements for the economic base of the cities;thirdly,the degree of network connection of venture capital is gradually enhanced,and the inter-provincial connection is also increasing,but the status of core cities is relatively stable;fourthly,the propensity for local VC investment in core cities is more pronounced,leading to a strong polarization of the core cities,while the spillover effect has also come into being at the same time.Finally,this paper proposes planning enlightenment in terms of agglomeration and diffusion,competition and cooperation,and primary and secondary relation and balance.