基于研发成本考虑的市场结构优化解析

研发直接带来厂商成本的变化，进而由于技术复杂度的不断提高及研发带来的规模经济，会导致多数产业市场集中度逐渐提高。在专利保护与许可证制度下，当研发导致的沉没成本比较小时，会因其研发速度更快而使厂商数量较多的竞争性市场的福利好于寡占或垄断市场。合作创新与国内竞争可以优化市场结构，提升我国企业研发能力，应对经济全球化的挑战。

Analysis of market structure optimization based on R&D cost consideration

R&D directly Changes the cost of a company and the concentration ratio of market is gradually raised by most industrial R&D because technological complexity is continuously raised and because R&D creates scale economy.Under the background of patent protection and license system, when sunk cost of R&D is relatively small,the welfare of the company is better than market oligopoly or monopoly because of the rapid development rate and competitive market of many companies.Cooperative innovation and domestic competition can optimize market structure and raise R&D ability of China enterprises in order to answer the challenge of economic globalization.