地方政府投资对区域技术创新的影响效应研究——基于门槛回归模型的实证分析

Research on the Effect of Local Government Investment on Regional Technological Innovation—— an Empirical Analysis Based on the Threshold Regression Model

摘要:

地方政府投资不仅是经济发展的重要引擎，也是影响区域技术创新水平的一个关键因素。本文在阐述地方政府投资对区域技术创新的作用机制的基础上，采用2005—2019年30个省份的面板数据，构建固定效应模型进行回归分析，同时构建面板门槛模型检验异质性条件下地方政府投资对区域技术创新的影响。研究结果显示：（1）地方政府投资显著提升辖区内的技术创新水平；（2）基于投资水平和开放程度异质性，地方政府投资对区域技术创新水平的影响存在双重门槛效应，并且处于对区域技术创新影响很大的阈值范围。

Abstract:

Local government investment is not only an important engine of economic development, but also a key factor affecting the level of regional technological innovation.On the basis of explaining the role mechanism of local government investment on regional technological innovation, this paper uses the panel data of 30 provinces from 2005 to 2019 to build a fixed-effect model for regression analysis, and constructs a panel threshold model to test the influence of local government investment on regional technological innovation under heterogeneity.The research results show that: (1) local government investment significantly improves the level of technological innovation within the jurisdiction; (2) based on the heterogeneity of investment level and openness, the impact of local government investment on regional technological innovation level has a dual threshold effect, and it is in the threshold range with a great impact on regional technological innovation.