以我国36个工业行业的大中型企业面板数据为样本,在Nickell的动态误差修正模型的基础上构建FGLS计量模型,探讨了技术创新对我国市场结构的影响.研究发现,无论从短期还是长期来看,技术创新都显著降低了行业的市场集中度,但影响幅度较小.对技术水平不同的行业组的计量分析也得到了类似结果.这意味着技术进步有利于降低行业壁垒、提高市场竞争度.加大研发投入,提高创新能力,有效控制市场规模,防止市场集中度过高,对于深化垄断行业改革、优化市场结构具有重要的政策启示.%From the Nickell's Dynamic Error Correction Model, a dynamic econometric analysis is made on the effects of innovation on market structure across large and medium-sized enterprises of 36 industrial industries in China based on the panel data FGLS models. The results show that innovation obviously decreases market concentration rate in short run and long run, but the effects are very small. The analysis of three groups' FGLS also appears similar results. This means that innovation is helpful to reduce trade barriers, improve the market competition. Increasing investment in research and development, improving the ability of innovation, at the same time, effective controlling of the size of the market to deepen the reform of monopoly industries, optimize the market structure are important policy implies.
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