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The findings may help to explain why ethnic hostilities can spread quickly (even in societies with few visible signs of interethnic hatred) and why many countries have adopted hate crime laws, and illustrate the need to study not only the existence of discrimination, but also the stability of attitudes and behaviors toward outgroup members.<\/jats:p>","DOI":"10.1073\/pnas.1720317115","type":"journal-article","created":{"date-parts":[[2018,4,23]],"date-time":"2018-04-23T15:10:47Z","timestamp":1524496247000},"page":"4881-4886","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":40,"title":["Social contagion of ethnic hostility"],"prefix":"10.1073","volume":"115","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8414-5447","authenticated-orcid":false,"given":"Michal","family":"Bauer","sequence":"first","affiliation":[{"name":"CERGE-EI, A joint workplace of Charles University and the Economics Institute of the Czech Academy of Sciences, 111 21 Prague, Czech Republic;"},{"name":"Institute of Economic Studies, Faculty of Social Sciences, Charles University, 110 00 Prague, Czech Republic;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jana","family":"Cahl\u00edkov\u00e1","sequence":"additional","affiliation":[{"name":"Max Planck Institute for Tax Law and Public Finance, 80539 Munich, Germany;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julie","family":"Chytilov\u00e1","sequence":"additional","affiliation":[{"name":"CERGE-EI, A joint workplace of Charles University and the Economics Institute of the Czech Academy of Sciences, 111 21 Prague, Czech Republic;"},{"name":"Institute of Economic Studies, Faculty of Social Sciences, Charles University, 110 00 Prague, Czech Republic;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tom\u00e1\u0161","family":"\u017delinsk\u00fd","sequence":"additional","affiliation":[{"name":"Institute of Economic Studies, Faculty of Social Sciences, Charles University, 110 00 Prague, Czech Republic;"},{"name":"Faculty of Economics, Technical University of Ko\u0161ice, 040 01 Ko\u0161ice, Slovakia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2018,4,23]]},"reference":[{"key":"e_1_3_4_1_2","doi-asserted-by":"crossref","first-page":"2185","DOI":"10.1257\/aer.98.5.2185","article-title":"On the salience of ethnic conflict","volume":"98","author":"Esteban J-M","year":"2008","unstructured":"J-M Esteban, D Ray, On the salience of ethnic conflict. 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