Abstract
Abstract Wind power (WP) is a long-term strategic energy alternative for China to cope with energy shortage and environmental crisis. Yet, how innovation policies precisely affect innovation efficiency (IE) of WP industry remains poorly understood. Therefore, based on the micro-data of Chinese WP-listed companies, this article measures the IE of enterprises in different links of wind power industry chain (WPIC), and discusses the effects of innovation policy and its mix on IE. The results show that there exists non-efficiency problems in Chinese WP industry during 2014–7, but the innovation of enterprises in the upstream of WPIC is DEA efficient. IE of enterprises in the midstream presents a U-shape, which fluctuates periodically in downstream. In addition, neither a single policy nor a policy mix has a significant impact on IE of enterprises in the upstream and midstream of WPIC, but has a significant negative effect on that of the downstream.
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