describes the empirical strategy, and section 6 presents the results. Section 7 concludes.
2. Literature
This article is closely related to the literature on media bias and persuasion. In particular, it contributes to the empirical literature on the effects of social media by providing
new causal estimates. This article also contributes to the literature on the impact of
communication technology on political outcomes.2 The literature distinguishes roughly
two broad channels of how internet influences political outcomes. First, providing information may persuade receivers to change their behavior or beliefs. Second, it can enhance
communication and coordination between agents.
Studies on democratic regimes have focused on how access to internet affects voter
participation. The effect varies depending on the relative importance of information and
entertainment content (cf. DellaVigna and Gentzkow 2010; Strömberg 2015). The role of
internet as a low cost channel of information may be especially important in an environment where traditional media is under state control. Miner (2015) shows that in Malaysia,
where the government held strict control over mass media, expanding uncensored internet penetration led to a decrease in the ruling party’s support. Similarly, Enikolopov,
Petrova, and Zhuravskaya (2011) find that in Russia availability of an independent TV
channel decreased vote for the government party and increased vote for the opposition.
Guriev, Melnikov, and Zhuravskaya (2019) suggest that wider access to internet may reduce government approval, particularly when traditional media is censored, by exposing
corruption. However, if internet is also censored, increased access does not affect opinion
on the government.
Mass media may be captured by an authoritarian regime and used to spread propaganda. Studying cross-border media, DellaVigna et al. (2014) find that exposure to
nationalistic Serbian radio in Croatia increased ethnic animosity towards Serbs and increased vote for Croatian nationalist parties, whereas Peisakhin and Rozenas (2018) find
that access to Russian state owned TV in Ukraine increased support for the pro-Russian
candidates in 2014. Adena et al. (2015) examine the effect of radio before and after
Hitler became the chancellor in Germany. During the democratic period pro-government
radio had a mitigating influence on Nazi support, but After Hitler’s rise to power the
radio content also shifted to reflect the views of the regime, which increased Nazi popularity. Yanagizawa-Drott (2014) shows that radio propaganda had an important role in
inflaming the Rwandan genocide, and significantly increased killings and participation in
violence. In an opposite setting in Uganda, Armand, Atwell, and Gomes (2020) show
that defection messaging was effective in mitigating conflict.
Research on enhanced communication in conflict situations exhibits mixed results.
2. For a more thorough literature review, see Zhuravskaya, Petrova, and Enikolopov (2020).
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