环境规制对企业技术创新影响的实证研究——以中国30个省份大中型工业企业为例

Empirical Study Impact of Environmental Regulation on Enterprises' Technological Innovation——Take Chinese 30 Provincial Large and Medium-sized Enterprise as an Example

采用中国30个省市（不包括西藏）大中型工业企业1996-2004年的面板数据，实证分析了环境规制对于企业技术创新的影响。实证结果显示，环境规制对滞后1或2期的R＆D投入强度、专利授权数量以及新产品销售收入比重有显著的正效应，环境规制强度每提高1％，三者分别增加0．12％、0．30％和0．22％。表明环境规制在中长期对中国企业技术创新有一定的促进作用，“波特假说”在一定程度上得到了证实。

Based on the panel data of 30 provinces and cities （ excluding Tibet） from 1996 to 2004, this paper provides empirical evidence on the effect of environmental regulation on enterprises＇technological innovation. The empirical results demonstrate that stricter environmental regulation is related to increase R＆D investment intensity,patent owned and sale revenue of new products as a percentage with lag 1 or 2 issue, if environmental regulations intensity are enhancing 1% , R＆D increase 0.19% , the patent increase 0.30%, sale revenue increase 0.22%. This indicated environmental regulation can stimulate the enterprises＇technological innovation for a long time, and Porter Hypothesis has been verified in the certain degree.