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Social Media and Political Contributions: The Impact of New Technology on Political Competition

Maria Petrova, Ananya Sen and Pinar Yildirim

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Abstract: Political campaigns are among the most sophisticated marketing exercises in the United States. As part of their marketing communication strategy, an increasing number of politicians adopt social media to inform their constituencies. This study documents the returns from adopting a new technology, namely Twitter, for politicians running for Congress by focusing on the change in campaign contributions received. We compare weekly donations received just before and just after a politician opens a Twitter account in regions with high and low levels of Twitter penetration, controlling for politician-month fixed effects. Specifically, over the course of a political campaign, we estimate that the differential effect of opening a Twitter account in regions with high vs low levels of Twitter penetration amounts to an increase of 0.7-2% in donations for all politicians and 1-3.1% for new politicians, who were never elected to the Congress before. In contrast, the effect of joining Twitter for experienced politicians remains negligibly small. We find some evidence consistent with the explanation that the effect is driven by new information about the candidates, e.g., the effect is primarily driven by new donors rather than past donors, by candidates without Facebook accounts and tweeting more informatively. Overall, our findings imply that social media can intensify political competition by lowering costs of disseminating information for new entrants to their constituents and thus may reduce the barriers to enter politics.

Date: 2020-11
New Economics Papers: this item is included in nep-pol and nep-soc
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