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This paper studies the effect of the diffusion of misinformation on immunization rates in Italy by exploiting a quasi\u2010experiment that occurred in 2012, when the Court of Rimini officially recognized a causal link between the measles\u2010mumps\u2010rubella vaccine and autism and awarded injury compensation. To this end, we exploit the virality of misinformation following the 2012 Italian court's ruling, along with the intensity of exposure to nontraditional media driven by regional infrastructural differences in Internet broadband coverage. Using a Difference\u2010in\u2010Differences regression on regional panel data, we show that the spread of this news resulted in a decrease in child immunization rates for all types of vaccines.<\/jats:p>","DOI":"10.1002\/hec.3937","type":"journal-article","created":{"date-parts":[[2019,8,20]],"date-time":"2019-08-20T07:17:58Z","timestamp":1566285478000},"page":"1377-1382","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":192,"title":["Vaccine hesitancy and (fake) news: Quasi\u2010experimental evidence from Italy"],"prefix":"10.1002","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8742-3820","authenticated-orcid":false,"given":"Vincenzo","family":"Carrieri","sequence":"first","affiliation":[{"name":"Department of Law, Economics and Sociology \u201cMagna Graecia\u201d University  Catanzaro Italy"},{"name":"RWI Research Network  Essen Germany"},{"name":"HEDG University of York  York UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4687-6214","authenticated-orcid":false,"given":"Leonardo","family":"Madio","sequence":"additional","affiliation":[{"name":"HEDG University of York  York UK"},{"name":"CORE Universit\u00e9 Catholique de Louvain  Louvain\u2010la\u2010Neuve Belgium"},{"name":"CESifo Research Network  Munich Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1296-4400","authenticated-orcid":false,"given":"Francesco","family":"Principe","sequence":"additional","affiliation":[{"name":"Erasmus School of Economics Erasmus University Rotterdam  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,8,20]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhealeco.2011.01.009"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2017.07.029"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1162\/003355304772839588"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/hec.3645"},{"key":"e_1_2_6_6_1","doi-asserted-by":"crossref","unstructured":"Chiou L. &Tucker C. (2018).Fake news and advertising on social media: A study of the anti\u2010vaccination movement (No. w25223). National Bureau of Economic Research.","DOI":"10.3386\/w25223"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1080\/21645515.2018.1454572"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1586\/14760584.2015.964212"},{"key":"e_1_2_6_9_1","unstructured":"European Centre for Disease Prevention and Control(2019) Monthly measles and rubella monitoring report January 2019 Surveillance Report. Available at:https:\/\/www.ecdc.europa.eu\/sites\/portal\/files\/documents\/measles\u2010rubella\u2010monthly\u2010surveillance\u2010report\u2010january\u20102019.pdf"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1257\/aer.104.7.2238"},{"key":"e_1_2_6_11_1","doi-asserted-by":"crossref","unstructured":"Gavazza A. Nardotto M. &Valletti T.(2018).Internet and politics: Evidence from UK local elections and local government policies. 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