中文摘要：

通过收集2006年到2015年间汽车企业所申请的新能源汽车专利数量和新车型数量,实证研究被纳入新能源汽车推广目录对企业专利活动的影响。双重差分估计结果表明,推广目录公布的初始时期,目录内企业所申请的新能源汽车专利数量并未显著增加,而随着政策的实施,效果才逐渐显现。进一步使用动态面板估计新能源汽车专利转化,研究得出企业申报新能源汽车专利后会尽快转化为新车型,并且企业当期推出新能源车型的比率受前期新车型比率的影响。这反映出以补贴销售端为主的新能源汽车推广政策虽然会促使企业申请更多专利,但是也造成企业为了持续获得补贴而加快专利转化速度,只求新产品快速进入市场,甚至导致部分企业伪造销售量,骗取补贴的问题。

英文摘要：

Through collecting the number of patents and new models of new-energy automobiles applied by automobile manufacturers between 2006 and 2015, this paper conducts an empirical study of the impact of being accepted into the promotion catalogue of new-energy automobile on the enterprises’ patent activities. The results of the DID estimation show that in the initial period of the publication of the promotion catalogue, the number of patents of new-energy automobiles applied by the enterprises included in this catalogue is not increased significantly. Only along with the implementation of the policies, did the effects gradually appear over time. When the dynamic panel is further used to estimate the patent transfer, the results show that if the enterprises have applied new-energy automobile patents, they would transform them into new models as soon as possible, and the ratio of the currently launched new-energy car model would be influenced by the previous ratio of new models. Those results reflect that although the new-energy automobile promotion policy focused on sales end subsidy can stimulate the enterprises to apply more patents, it also encourages them to quicken the speed of patent transfer in order to gain the subsidy continuously. They may only seek to bring their new products into the market quickly, thus some enterprises would even forge false sales volume to gain subsidies by cheating.