How do social interactions shape collective action, and how are they mediated by networked information technologies? We answer these questions studying the Temperance Crusade, a wave of anti-liquor protest activity spreading across 29 states between 1873 and 1874. Relying on exogenous variation in network links generated by railroad accidents, we provide causal evidence of social interactions driving the diffusion of the movement, mediated by rail and telegraph information about neighboring activity. Local newspaper coverage of the crusade was a key channel mediating these effects. Using an event-study methodology, we find strong complementarities between rail and telegraph networks in driving the movement’s spread. (JEL D83, J16, L92, L96, N31, N41, N71)

中文翻译：

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信息网络和集体行动：来自妇女节制运动的证据

社会互动如何塑造集体行动，以及它们如何通过网络信息技术进行调解？我们通过研究 Temperance Crusade 来回答这些问题，这是 1873 年至 1874 年间在 29 个州蔓延的一波反酒抗议活动。依靠铁路事故产生的网络链接的外生变化，我们提供了社会互动推动传播的因果证据运动，由有关邻近活动的铁路和电报信息调解。当地报纸对十字军东征的报道是调节这些影响的关键渠道。使用事件研究方法，我们发现铁路和电报网络在推动运动传播方面具有很强的互补性。(JEL D83、J16、L92、L96、N31、N41、N71)