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| 网络计量经济学（同伴效应）× | 中心性分析× | |
|---|---|---|
| 领域≠ | 计量经济学 | 网络分析 |
| 方法族≠ | Regression model | Process / pipeline |
| 起源年份≠ | 2009 | 1979 |
| 提出者≠ | Yann Bramoullé, Habiba Djebbari & Bernard Fortin | Linton C. Freeman |
| 类型≠ | Linear-in-means peer effects regression | Descriptive / exploratory network measure family |
| 开创性文献≠ | Bramoullé, Y., Djebbari, H., & Fortin, B. (2009). Identification of peer effects through social networks. Journal of Econometrics, 150(1), 41–55. DOI ↗ | Freeman, L.C. (1979). Centrality in Social Networks: Conceptual Clarification. Social Networks, 1(3), 215-239. DOI ↗ |
| 别名 | Social Interactions Model, Peer Effects Model, Social Network Regression, Ağ Ekonometrisi | Merkeziyet Analizi (Degree, Betweenness, Eigenvector), node centrality, centrality measures, graph centrality |
| 相关≠ | 3 | 5 |
| 摘要≠ | Network econometrics estimates how individuals' outcomes are causally shaped by the behaviour and characteristics of their social-network neighbours. Formalised by Bramoullé, Djebbari, and Fortin (2009), the framework embeds a row-normalised adjacency matrix into a linear regression, separating endogenous peer effects (imitation of outcomes), exogenous contextual effects (influence of neighbours' attributes), and correlated effects (shared environment), while using network topology to construct valid instruments. | Centrality analysis is a family of network-analytic measures, formalized by Freeman (1979), that quantifies the structural importance of individual nodes within a graph. Each centrality index captures a distinct mechanism of influence: degree centrality reflects direct connectivity, betweenness centrality identifies nodes that broker information flow, closeness centrality captures proximity to all others, and eigenvector centrality (along with PageRank) rewards connection to highly connected neighbors. |
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