Citizens increasingly rely on social media to consume and disseminate news and information about politics, but the factors that drive political information sharing on these sites are not well understood. This study focused on how online partisan news use influences political information sharing in part because of the distinct negative emotions it arouses in its audience. Using panel survey data collected during the 2012 U.S. presidential election, we found that use of proattitudinal partisan news online is associated with increased anger, but not anxiety, directed at the opposing party's presidential candidate and that anger subsequently facilitated information sharing about the election on social media. The results suggest partisan media may drive online information sharing by generating anger in its audience.

中文翻译：

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党派挑衅：党派新闻使用和情绪反应在社交媒体中政治信息共享中的作用

公民越来越依赖社交媒体来消费和传播有关政治的新闻和信息，但是人们对在这些站点上共享政治信息的因素却知之甚少。这项研究的重点是在线游击新闻的使用如何影响政治信息共享，部分原因是它引起了观众的明显负面情绪。使用2012年美国总统大选期间收集的面板调查数据，我们发现在线使用偏激党派新闻与针对对方的总统候选人的愤怒增加而不是焦虑相关，并且愤怒随后促进了关于社会选举的信息共享媒体。结果表明，游击党媒体可能会通过激怒观众来推动在线信息共享。