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根据近几年山东省规模以上工业企业R&D投资方面的主要指标以及河北省规模以上工业企业的主要经济数据,结合山东省规模以上工业企业R&D投资的主要特征,进行省际间比较分析。利用数据包络分析(DEA)方法对山东省与河北省规模以上工业企业R&D投资产出效率进行评价。经与河北省R&D投资产出效率的比较分析,表明山东省历年R&D投资结构不合理是导致山东省R&D投资产出效率低的主要原因。同时,本文还基于柯布—道格拉斯生产函数,证明了山东省规模以上工业企业新产品销售收入的增长主要依赖R&D投资效率的提高。并在此基础上提出了优化山东省R&D投资的政策建议:加强政府的控制和导向作用;优化规模以上工业企业R&D投资结构,提高R&D经费使用效率;优先发展高新技术产业。
According to the main indexes of R & D investment of industrial enterprises above designated size in Shandong Province in recent years and the main economic data of industrial enterprises above designated size in Hebei Province, this paper compares the main features of R & D investment of large-scale industrial enterprises in Shandong Province. The data envelopment analysis (DEA) method is used to evaluate the R & D investment and output efficiency of industrial enterprises above designated size in Shandong Province and Hebei Province. After comparing with the R & D investment output efficiency in Hebei province, it shows that the unreasonable R & D investment structure in Shandong Province is the main reason that the output efficiency of R & D investment in Shandong Province is low. At the same time, based on the Cobb-Douglas production function, this paper proves that the growth of sales revenue of new products of large-scale industrial enterprises in Shandong Province mainly depends on the improvement of R & D investment efficiency. On the basis of this, some suggestions are put forward to optimize R & D investment in Shandong Province: to strengthen the control and guidance of the government; to optimize the R & D investment structure of industrial enterprises above designated size so as to improve the efficiency of using R & D funds; and give priority to the development of high-tech industries.