政治精英的社交媒体分享：不对称的美国例外论
Social media sharing by political elites: An asymmetric American exceptionalism
摘要：
社交媒体平台上越来越多的不可信信息共享是我们现代信息社会的主要挑战之一。由于政治精英传播的信息被认为会影响公民和媒体的话语，因此审查政治家分享的信息的质量尤为重要。从2016年开始，美国国会共和党成员越来越多地分享与不可信来源的链接。共和党人与民主党人发布的不可信信息的比例正在加速分化，自拜登当选总统以来，这种分化已经恶化。这种政党之间的分歧似乎是美国所独有的，因为它在德国和英国等其他西方民主国家无法观察到，这些国家的左右差距较小，并且基本保持不变。
英文摘要：
Increased sharing of untrustworthy information on social media platforms is one of the main challenges of our modern information society. Because information disseminated by political elites is known to shape citizen and media discourse, it is particularly important to examine the quality of information shared by politicians. Here we show that from 2016 onward, members of the Republican party in the U.S. Congress have been increasingly sharing links to untrustworthy sources. The proportion of untrustworthy information posted by Republicans versus Democrats is diverging at an accelerating rate, and this divergence has worsened since president Biden was elected. This divergence between parties seems to be unique to the U.S. as it cannot be observed in other western democracies such as Germany and the United Kingdom, where left-right disparities are smaller and have remained largely constant.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
