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Trustful Voters, Trustworthy Politicians: A Survey Experiment on the Influence of Social Media in Politics

Natalia Aruguete, Ernesto Calvo, Carlos Scartascini () and Tiago Ventura

No 11385, IDB Publications (Working Papers) from Inter-American Development Bank

Abstract: Recent increases in political polarization in social media raise questions about the relationship between negative online messages and the decline in political trust around the world. To evaluate this claim causally, we implement a variant of the well-known trust game in a survey experiment with 4,800 respondents in Brazil and Mexico. Our design allows to test the effect of social media on trust and trustworthiness. Survey respondents alternate as agents (politicians) and principals (voters). Players can cast votes, trust others with their votes, and cast entrusted votes. The players rewards are contingent on their preferred “candidate” winning the election. We measure the extent to which voters place their trust in others and are themselves trustworthy, that is, willing to honor requests that may not benefit them. Treated respondents are exposed to messages from in-group or out-group politicians, and with positive or negative tone. Results provide robust support for a negative effect of uncivil partisan discourse on trust behavior and null results on trustworthiness. The negative effect on trust is considerably greater among randomly treated respondents who engage with social media messages. These results show that engaging with messages on social media can have a deleterious effect on trust, even when those messages are not relevant to the task at hand or not representative of the actions of the individuals involved in the game.

Keywords: Trust; Social media; Trustworthiness; Political polarization (search for similar items in EconPapers)
JEL-codes: D72 D83 D91 (search for similar items in EconPapers)
Date: 2021-07
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Persistent link: https://EconPapers.repec.org/RePEc:idb:brikps:11385

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