摘要
本文在考虑网络外部性影响的情况下,将产品质量作为衡量网络产品纵向差异的因素,研究了完全兼容和完全不兼容两种情况下网络产业最优市场结构的问题。研究结果表明:同简单产品和完全兼容性网络产品市场不同的是,在网络产品完全不兼容的情况下,网络产业应通过适度集中(寡头垄断)而不是绝对集中(完全垄断)来改善社会福利;同完全不兼容市场相比,完全兼容的市场更加利于社会福利的提高。
Considering the impact of network externalities,the paper studies the optimal market structure of network industries based on the point that quality is the dominant dimension of vertical differentiation.Through data computing and analyzing,the results show that under the condition of incompatibility,proper concentration(oligopoly)is more conductive to the improvement of social welfare than absolute concentration(pure monopoly)comparing with simple goods and compatible network goods,and compatibility can improve social welfare comparing with incompatibility.
出处
《数量经济技术经济研究》
CSSCI
北大核心
2005年第5期129-140,共12页
Journal of Quantitative & Technological Economics
关键词
网络产业
网络外部性
纵向差异
社会福利
市场结构
Network Goods
Network Externalities
Vertical Differentiation
Social Welfare
Market Structure
