Social media, sentiment and public opinions: Evidence from #Brexit and #USElection

Social media, sentiment and public opinions: Evidence from #Brexit and #USElection
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DOI:
10.1016/j.euroecorev.2021.103772
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发表时间:
2021-06-01
影响因子:
2.8
通讯作者:
Talavera, Oleksandr
Talavera, Oleksandr
中科院分区:
经济学3区
文献类型:
--
作者:
Gorodnichenko, Yuriy;Pham, Tho;Talavera, Oleksandr

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本文研究了社交媒体中的信息传播以及机器人在影响公众舆论方面的潜在作用。使用2016年欧盟的Twitter数据公投(“Brexit”)和2016年美国总统大选,我们发现Twitter上的信息传播基本上在1-2小时内完成。具有相似信念的代理人之间的更强扩散与社交媒体的“回声室”观点一致。我们的研究结果与机器人可能对人类的推文活动产生切实影响的观点一致,并且机器人的影响程度取决于机器人是否提供与人类先验一致的信息。总体而言,我们的研究结果表明,Twitter机器人的积极使用,加上社交媒体的碎片化和情绪的作用,可能会加剧政治两极分化。(c)2021爱思唯尔有限公司版权所有。
This paper studies information diffusion in social media and the potential role of bots in influencing public opinions. Using Twitter data on the 2016 E.U. Referendum ("Brexit") and the 2016 U.S. Presidential Election, we find that diffusion of information on Twitter is largely complete within 1-2 h. Stronger diffusion between agents with similar beliefs is consistent with the "echo chambers" view of social media. Our results are consistent the notion that bots could have a tangible effect on the tweeting activity of humans and that the degree of bots' influence depends on whether bots provide information consistent with humans' priors. Overall, our results suggest that the aggressive use of Twitter bots, coupled with the fragmentation of social media and the role of sentiment, could enhance political polarization. (c) 2021 Elsevier B.V. All rights reserved.