Facts, Alternative Facts, and Fact Checking in Times of Post-Truth Politics
81 Pages Posted: 15 Aug 2017 Last revised: 19 Nov 2018
Date Written: August 2017
How effective is fact checking in countervailing "alternative facts," i.e., misleading statements by politicians? In a randomized online experiment during the 2017 French presidential election campaign, we subjected subgroups of 2480 French voters to alt-facts by the extreme-right candidate, Marine Le Pen, and/or corresponding facts about the European refugee crisis from official sources. We find that: (i) alternative facts are highly persuasive; (ii) fact checking improves factual knowledge of voters (iii) but it does not affect policy conclusions or support for the candidate; (iv) exposure to facts alone also increases support for the candidate, even though voters update their knowledge.
Keywords: alternative facts, elections, fact checking, fake news, voting
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