中文摘要：

“波特假说”认为合理设置的环境规制政策在长期能够刺激企业进行技术创新，产生创新补偿效应，从而弥补因规制增加的成本，因此发挥规制的创新效应是实现经济发展与环境保护双赢的关键。文章运用2000—2010年中国29个地区的面板数据，通过系统GMM和门槛回归方法，在低碳视角下检验“波特假说”是否存在及存在的条件并确定最优规制水平。结果表明环境规制对创新的激励作用具有一定的滞后性，在当期阻碍技术创新，在滞后期促进创新且在滞后二期促进作用最明显；环境规制强度与技术创新之间存在三重门槛效应，规制强度较低时规制对创新的影响表现为一种潜动力，不足以引发创新活动的开展，在最优规制水平显著促进创新，强度过高时促进作用减弱。

英文摘要：

The“porter hypothesis”states that reasonable set of environmental regulation can stimulate enterprise technical innovation in the long term and produce innovation compensation effects, which can compensate for cost of obeying the regula- tion. So realizing the innovation effects of regulation is the key to realize economic development and environmental protection. This paper examines the impact of environmental regulation on enterprises＇ technological innovation in low-carbon perspective using the dynamic panel data for 29 regions in China from 2000 to 2010. In addition, we verify the existence of the “Porter Hypothesis” and the optimal level of regulation. The results show that innovation incentives of environmental regulation have a certain lag period. In the current, they hinder technological innovation, but promote innovation in the lag period, the effects are the most obvious in the lagging period; technological innovation effects of environmental regulations also show differences in the different strength of the regulations, in the lower intensity regulation, impacts on innovation performance of regulation stay as a potential power, which do not strong enough to lead innovative. Regulation will promote innovation in the optimal level of regulation significantly, promotion is weakened when intensity is too high.