During the 2019 European elections campaign, we exposed a random sample of French voting-age Facebook users to false statements by a far-right populist party. A randomly selected subgroup was also presented with fact-checking of these statements; another subgroup was offered a choice of whether to view the fact-checking. Participants could then share these statements on their Facebook pages. We show that (i) both imposed and voluntary fact-checking reduce sharing of false statements by about 45 percent, (ii) the size of the effect is similar between imposed and voluntary fact-checking, and (iii) each additional click required to share false statements substantially reduces sharing.
"Checking and Sharing Alt-Facts."
American Economic Journal: Economic Policy
14 (3): 55-86
Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
Criteria for Decision-Making under Risk and Uncertainty
Micro-Based Behavioral Economics: Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making