R&D活动提高企业市场势力的途径是什么?R&D活动改善社会福利的途径与机制是否存在行业差异?本文利用2004—2007年中国工业企业的面板数据,在市场势力的度量模型——新产业组织生产法模型的基础上加入企业的R&D活动因素,直接测算我国工业企业的市场势力,并基于企业所在行业、企业所有制和企业行为特征的不同视角,考察R&D活动对企业市场势力的影响,以及降低成本和提高产品价格两条路径对不同行业的社会福利效应的影响。
In what way can R&D activity improve the market power? Whether do the industry differ- ences exist in the way and mechanism that R&D activity improves social welfare? Based on the panel data from Chinese,, manufacturing data from 2004 to 2007, this paper introduces enterprise R&D activity into market power measurement model and calculates the market power of Chinese manufacturing enterprises directly. From the perspectives of industry, ownership and enterprise behavior characteristic, the effect of R&D activity on the enterprise market power and the effect of reducing cost and increasing product price on social welfare in different industries are both investigated.