市场结构、效率与企业绩效:对我国风电产业的一项实证

Market Structure,Efficiency and Enterprise Performance:An Empirical Research on Wind Power Industry in China

随着我国绿色可再生能源战略的推进,产业组织视角的风电产业研究有待深入。以2007-2015年我国风电上市企业为样本,运用tobit回归探究风电产业市场结构、效率与企业绩效之间关系的结果主要有两点:一是在我国风电产业市场中,相对市场势力假说与合谋假说成立,企业的绩效水平不仅与市场集中度正相关,也与其市场份额正相关。二是X效率结构假说与规模效率结构假说皆不成立,企业效率与绩效之间并无显著联系,但企业效率会影响市场份额进而作用于绩效水平。风电企业为提高其绩效水平,应通过优质产品占据较高的市场份额获得超额利润,在提高X-效率以降低成本的同时也需要提高规模效率保证企业处于规模最优状态。

The relationship between market stnxcture efficiency and performance of wind power industry was investigated by using tobit regression with a sample of listed wind power enterprises in China from 2007 to 2015. Research shows that the relative market power hypothesis and collusion hypothesis was supported in Chi-nese wind power industry. The performance of enterprises is positively correlated with market concentration and market share. Both the X - efficiency structure hypothesis and the scale - efficiency structure hypothesis are not established. There is no significant correlation between enterprise efficiency and performance, but the efficiency of the enterprise affects the market share and the peifonnance. In order to improve performance, wind power en-terprises ,should produce high quality products, occupy a higher market share and gain more profit. Improvring X - efficiency and reducing costs as important as improving the scale efficiency by adjusting to optimal scale.