摘要
主要探讨网络形成模型中个体连接搭档异质性对有效网络结构的影响。由于个体在财富、地位、知识等方面的差异性,导致网络形成过程中个体偏好选择具有较高价值的个体成为连接搭档。因此在Jackson和Wolinsky(1996)提出的连接模型基础上,考虑当个体连接成本与得益由其连接搭档决定时,相较与同质性个体,其有效网络结构的变化。研究表明搭档异质性在增加有效网络的多重性及结构的复杂性等方面起了主要作用。
This paper extends the connections model of network formation initiated by Jackson and Wolinsky(1996)by allowing for partner heterogeneity in which the model the formation of a link requires the consent of both players involved,but severance can be done unilaterally.And if there exists a link between player i and j,then players i pays a cost of cj and gets benefits of wj.Our main result consists of the characterization of efficient networks.Compared with homogeneous individuals,we find that partner heterogeneity plays a major role in increasing the scope and multiplicity of efficient networks.
出处
《系统工程》
CSSCI
CSCD
北大核心
2015年第2期141-145,共5页
Systems Engineering
基金
国家自然科学基金重大项目(71090402)
国家自然科学基金资助项目(71771095)
关键词
社会网络
网络形成
搭档异质性
有效网络
Social Networks
Network Formation
Partner Heterogeneity
Efficient Network
