Checking and Sharing Alt-Facts

62 Pages Posted: 4 Jun 2020

See all articles by Emeric Henry

Emeric Henry

Sciences Po

Ekaterina Zhuravskaya

Paris School of Economics (PSE)

Sergei Guriev

Sciences Po; Centre for Economic Policy Research (CEPR)

Multiple version iconThere are 2 versions of this paper

Date Written: May 9, 2020


Using a randomized experiment in the context of the 2019 European elections in France, we study how fact-checking affects real sharing of “alternative facts” (false or misleading statements by politicians) on Facebook and the determinants of the decision to view the fact-checking. We expose over 4200 voting-age French to statements on the role of the EU made by the extreme-right party Rassemblement National. A randomly selected subset of participants was exposed to fact-checking of these statements while another randomly selected subset was offered a choice whether to view the fact-checking or not. Then, all participants were offered an opportunity to share alternative facts on their Facebook pages. Those who saw fact-checking information could also share it on Facebook. We show that: (i) both imposed and voluntary fact-checking reduces sharing of alternative facts by more than 25%; (ii) the size of the treatment effect is similar between these two treatments; and (iii) each additional click required to share alternative facts reduces sharing by 75%.

Keywords: alternative facts, fake news, fact-checking, sharing, social media, Facebook

JEL Classification: D8, D91

Suggested Citation

Henry, Emeric and Zhuravskaya, Ekaterina and Guriev, Sergei, Checking and Sharing Alt-Facts (May 9, 2020). Available at SSRN: or

Emeric Henry

Sciences Po ( email )

27 rue Saint-Guillaume
Paris Cedex 07, 75337

Ekaterina Zhuravskaya

Paris School of Economics (PSE) ( email )

48 Boulevard Jourdan
Paris, 75014 75014

Sergei Guriev (Contact Author)

Sciences Po ( email )

27 rue Saint-Guillaume
Paris Cedex 07, 75337


Centre for Economic Policy Research (CEPR)

United Kingdom

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