CAJ | 학술논문

基于2007--2012年沪深两市22家风电产业上市公司的数据，运用DEA-Tobit方法对我国风电产业的技术效率及其影响因素进行实证分析，结果表明：风电产业技术效率整体水平并不理想，大部分企业处于规模报酬递减阶段，资源整合效果不佳。在影响技术效率演化的重要因素中，R＆D投入和净资产报酬率对技术效率、纯技术效率、规模效率均产生显著正影响；技术人员数量对规模效率和技术效率起正向作用；资产负债率对规模效率和技术效率起显著的反向作用；股权集中度对纯技术效率和技术效率产生积极影响。
기우2007--2012년호심량시22가풍전산업상시공사적수거，운용DEA-Tobit방법대아국풍전산업적기술효솔급기영향인소진행실증분석，결과표명：풍전산업기술효솔정체수평병불이상，대부분기업처우규모보수체감계단，자원정합효과불가。재영향기술효솔연화적중요인소중，R＆D투입화정자산보수솔대기술효솔、순기술효솔、규모효솔균산생현저정영향；기술인원수량대규모효솔화기술효솔기정향작용；자산부채솔대규모효솔화기술효솔기현저적반향작용；고권집중도대순기술효솔화기술효솔산생적겁영향。
Based on the data of 22 listed wind power companies in the Shanghai Stock Exchange and the Shenzhen Stock Exchange from 2007 to 2012, the paper used the DEA-Tobit approach to take the empirical analysis on the technical efficiency of China＇s wind power industry and its influencing factors. Firstly, the overall level of China＇s wind power industry is not ideal. Most enterprises are in the stage of decreasing returns to scale. And the resource integration is ineffective. Secondly, among the important factors of influencing the tech- nical efficiency evolution, the R＆D investment and the return ratio of net assets have the significant positive impact on technical effi- ciency, pure technical efficiency and scale efficiency. The number of technical personnel performs the positive effect on technical effi- ciency and scale efficiency. The debt-asset ratio negatively influences the technical efficiency and scale efficiency. And the influencing impact of the ownership concentration on pure technical efficiency and technical efficiency presents active and positive.