工业用地相对成本、工业化水平与城市创新

Relative Cost of Industrial Land,Industrialization Level and Urban Innovation

本文主要关注工业用地相对成本对城市创新的异质性影响。基于2008—2016年216个地级市的样本数据,采用面板门槛模型进行实证检验。结果表明:(1)工业用地相对成本对城市创新的影响存在显著的门槛效应。在工业化水平较高的地区,工业用地相对成本下降主要源于市场对住宅用地的投资投机性需求而引致的价格上涨,工业用地相对成本下降对城市创新产生促进作用;在工业化水平较低的地区,工业用地相对成本下降则主要源于地方政府引资竞争下形成的无差别低价供地策略,工业用地相对成本下降对城市创新产生抑制作用。(2)在工业化水平较低的地区,工业用地价格的上涨会进一步抑制城市创新;而在工业化水平较高的地区,住宅用地价格的上涨对城市创新反而具有促进作用。

This paper focuses on the heterogeneity of the impact of the relative cost of industrial land on urban innovation.Based on the sample data of 216 prefecture-level cities from 2008 to 2016,the panel threshold model is used for empirical test.The results show that:(1)The relative cost of industrial land has a significant threshold effect on urban innovation.In areas with higher industrialization level,the decrease of relative cost of industrial land is mainly due to the price increase caused by the speculative demand for residential land investment in the market,the decrease of relative cost of industrial land will promote urban innovation;In areas with lower industrialization level,the decrease of relative cost of industrial land is mainly due to the strategy of undifferentiated low price land supply shaped by local governments'investment competition,and the decrease of relative cost of industrial land has an inhibitory effect on urban innovation.(2)In areas with lower industrialization level,the rise of industrial land price will further inhibit urban innovation;However,in areas with higher industrialization level,the rise of residential land price has a positive effect on urban innovation.