The Economic Consequences of Social-Network Structure
综述了社交网络结构的经济后果，区分宏观与微观特征，探讨其在学习、扩散和决策中的作用，并讨论网络内生性带来的实证挑战。
We survey the literature on the economic consequences of the structure of social networks. We develop a taxonomy of “macro” and “micro” characteristics of social-interaction networks and discuss both the theoretical and empirical findings concerning the role of those characteristics in determining learning, diffusion, decisions, and resulting behaviors. We also discuss the challenges of accounting for the endogeneity of networks in assessing the relationship between the patterns of interactions and behaviors.