Tabloid media campaigns and public opinion: Quasi-experimental evidence on Euroscepticism in England Florian Foos London School of Economics & Political Science Daniel Bischof University of Zurich March 3, 2021 Abstract Whether powerful media outlets have eects on public opinion has been at the heart of theoret- ical and empirical discussions about the media’s role in political life. Yet, the eects of media campaigns are dicult to study because citizens self-select into media consumption. Using a quasi-experiment – the 30-years boycott of the most important Eurosceptic tabloid newspaper, The Sun, in Merseyside caused by the Hillsborough soccer disaster – we identify the eects of The Sun boycott on attitudes towards leaving the EU. Dierence-in-dierences designs using public opinion data spanning three decades, supplemented by referendum results, show that the boycott caused EU attitudes to become more positive in treated areas. This eect is driven by cohorts socialised under the boycott, and by working class voters who stopped reading The Sun. Our findings have implications for our understanding of public opinion, media influence, and ways to counter such influence, in contemporary democracies. abstract=150 words; full manuscript (excluding abstract)=11,915 words. corresponding author: Florian Foos,
[email protected]. Assistant Professor in Political Behaviour, Department of Govern- ment, London School of Economics & Political Science. Houghton Street, London, WC2A 2AE, UK. Phone: +44 (0)7491976187. Daniel Bischof, SNF Ambizione Grant Holder, Department of Political Science, University of Zurich. Aolternstrasse 56, 8050 Zurich, CH. Phone: +41 (0)44 634 58 50. Both authors contributed equally to this paper; the order of the authors’ names reflects the principle of rotation.