Homophily, group size, and the diffusion of political information in social networks: Evidence from Twitter
Homophily, group size, and the diffusion of political information in social networks: Evidence from Twitter
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DOI：
10.1016/j.jpubeco.2016.08.011
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发表时间：
2016-11-01
影响因子：
9.8
通讯作者：
Knight, Brian
中科院分区：
文献类型：
--
作者：
Halberstam, Yosh;Knight, Brian
我们研究同质性（一种与相似个体互动的倾向）在社交网络中政治信息传播中的作用。我们开发了一个模型，可以预测更多的人会过多地接触志趣相投的信息，并且较大的群体拥有更多的联系并接触到更多的信息。为了检验这些假设，我们使用了参与政治的 Twitter 用户之间的链接和通信数据。我们发现，与少数群体相比，属于多数政治群体的用户拥有更多的联系，接触到更多的信息，并且接触信息的速度更快。同样，我们发现用户不成比例地接触到志同道合的信息，并且信息更快地到达志同道合的用户。 (C) 2016 Elsevier B.V. 保留所有权利。
We investigate the role of homophily - a tendency to interact with similar individuals-in the diffusion of political information in social networks. We develop a model predicting disproportionate exposure to like-minded information and that larger groups have more connections and are exposed to more information. To test these hypotheses, we use data on links and communications between politically-engaged Twitter users. We find that users affiliated with majority political groups, relative to the minority group, have more connections, are exposed to more information, and are exposed to information more quickly. Likewise, we find that users are disproportionately exposed to like-minded information and that information reaches like-minded users more quickly. (C) 2016 Elsevier B.V. All rights reserved.