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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Identifying the roles of race-based choice and chance in high school friendship network formation
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Identifying the roles of race-based choice and chance in high school friendship network formation

机译：确定基于种族的选择和机会在高中友谊网络形成中的作用

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摘要

Homophily, the tendency of people to associate with others similar to themselves, is observed in many social networks, ranging from friendships to marriages to business relationships, and is based on a variety of characteristics, including race, age, gender, religion, and education. We present a technique for distinguishing two primary sources of homophily: biases in the preferences of individuals over the types of their friends and biases in the chances that people meet individuals of other types. We use this technique to analyze racial patterns in friendship networks in a set of American high schools from the Add Health dataset. Biases in preferences and biases in meeting rates are both highly significant in these data, and both types of biases differ significantly across races. Asians and Blacks are biased toward interacting with their own race at rates ＞7 times higher than Whites, whereas Hispanics exhibit an intermediate bias in meeting opportunities. Asians exhibit the least preference bias, valuing friendships with other types 90% as much as friendships with Asians, whereas Blacks and Hispanics value friendships with othertypes 55% and 65% as much as same-type friendships, respectively, and Whites fall in between, valuing other-type friendships 75% as much as friendships with Whites. Meetings are significantly more biased in large schools (＞1,000 students) than in small schools (＜ 1,000 students), and biases in preferences exhibit some significant variation with the median household income levels in the counties surrounding the schools.
机译：同性恋倾向是人们与自己相似的人交往的趋势，在许多社交网络中都可以看到，从友谊到婚姻再到商业关系，并基于种族，年龄，性别，宗教和教育等多种特征。我们提出了一种区分同质性的两个主要来源的技术：对个人偏好的偏爱，而不是对朋友类型的偏见；对人们与其他类型的人相遇的机会的偏见。我们使用这项技术从Add Health数据集中分析了一组美国高中的友谊网络中的种族模式。在这些数据中，偏好偏向和满足率偏见都非常显着，并且两种偏见在种族之间存在显着差异。亚洲人和黑人倾向于与自己的种族互动，其比率是白人的＞ 7倍，而西班牙裔人在满足机会方面表现出中等偏见。亚洲人的偏见最少，与其他人的友谊的价值是与亚洲人的友谊的90％，而黑人和西班牙裔人对其他类型的友谊的重视程度分别是同类型的友谊的55％和65％，而白人介于两者之间，与白人的友谊比其他类型的友谊高75％。在大型学校（＞ 1,000名学生）中，会议的偏见明显大于在小型学校（＜1,000名学生）中的偏见，并且偏好的偏倚随学校周围县中位数家庭收入水平的变化而显着变化。

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