Homophily and the speed of social mobilization: the effect of acquired and ascribed traits.
Homophily and the speed of social mobilization: the effect of acquired and ascribed traits.
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DOI：
10.1371/journal.pone.0095140
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Velu C
中科院分区：
文献类型：
--
作者：
Alstott J;Madnick S;Velu C
社会网络中个人的大规模动员正在变得越来越普遍。然而，人们对影响社会动员速度的因素知之甚少。在这里，我们使用框架现场实验来识别和测量个体的属性及其预测动员速度的关系。我们举办了一场全球社会动员竞赛，并记录了参与者及其招募的人的个人特征。我们研究了先天特征（性别、年龄）和后天特征（地理和信息源）对动员速度的影响。我们发现，同质性（即与具有相似特征的其他个体互动的偏好）在社会动员中发挥着混合作用。后天性状存在同质性，即当招募者和新兵具有相同性状时，与不同性状相比，动员速度更快。相比之下，我们没有找到对归因特征同质性的支持。相反，这些特征还具有其他非同质效应：女性动员其他女性的速度比男性动员其他男性的速度快。年轻的招聘人员动员其他人的速度更快，而年长的招聘人员动员速度较慢。当新兵第一次直接从比赛组织听说比赛时，他们的动员速度也会更快，而当从不太个人的来源类型（例如家庭与媒体）听到比赛消息时，他们的速度就会降低。这些发现表明，社会动员所包含的动力不同于其他更被动的社会活动传播形式。这些发现表明了设计社会动员任务以提高速度的相关因素。
Large-scale mobilization of individuals across social networks is becoming increasingly prevalent in society. However, little is known about what affects the speed of social mobilization. Here we use a framed field experiment to identify and measure properties of individuals and their relationships that predict mobilization speed. We ran a global social mobilization contest and recorded personal traits of the participants and those they recruited. We studied the effects of ascribed traits (gender, age) and acquired traits (geography, and information source) on the speed of mobilization. We found that homophily, a preference for interacting with other individuals with similar traits, had a mixed role in social mobilization. Homophily was present for acquired traits, in which mobilization speed was faster when the recuiter and recruit had the same trait compared to different traits. In contrast, we did not find support for homophily for the ascribed traits. Instead, those traits had other, non-homophily effects: Females mobilized other females faster than males mobilized other males. Younger recruiters mobilized others faster, and older recruits mobilized slower. Recruits also mobilized faster when they first heard about the contest directly from the contest organization, and decreased in speed when hearing from less personal source types (e.g. family vs. media). These findings show that social mobilization includes dynamics that are unlike other, more passive forms of social activity propagation. These findings suggest relevant factors for engineering social mobilization tasks for increased speed.
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发表时间：
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影响因子：
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10.1073/pnas.0800332105
发表时间：
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影响因子：
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