基于主成分分析的我国新型城镇化质量评价

城镇化是现代化的必由之路，我国的城镇化进程在取得巨大成就的同时出现了严重的城镇化质量问题。本研究从新型城镇化的内涵出发，构建新型城镇化质量评价指标体系，采用主成分分析法对全国30个省市的城镇化发展质量进行综合评价。结果显示：我国30个省市间城镇化质量差异十分显著，高于城镇化速度体现的差异。从东中西部区域来衡量城镇化质量高低，可以看出，东部＞中部＞西部。从城镇化速度与城镇化质量的协调度来分析，可以看出我国城镇化可以划分为4种类型：“高——高”型，“高——低”型，“低——低”型，“低——高”型，文章最后针对不同类型的城镇化提出相应的政策建议。

An Empirical Study of Environmental Regulations Influence on Green Technology Innovation---Based on Different Regulation Policies and 30 Provinces Data in China

From the perspective of command and control type environmental regulation and market-based incentive environmental regulation policy,taking 2003-2011 data of 30 provinces in China as samples,environmental regulation impact on green technology innovation is studied with panel data analysis model.The research results indicate whether take environmental regulation as exogenous variable or endogenous variable,two kinds of environmental regulation have significant incentive influence on different kinds of green product innovation and green technology innovation,but the effects of other control variables show different effects.Through empirical study of different regions-eastern,central and west,the results show that the influence of environmental regulation on different kinds of technological innovation presents more obvious policy differences and regional differences.In order to improve the green technology innovation offsets of environmental regulation,flexible environmental regulation policies and appropriate regulation intensity should be made,and the region difference and the differentiation of the green technology innovation strategy must be considered.