Why EU member states should take heed of the sovereignty concerns of their citizens

The 2016 referendum that led to the UK’s exit from the European Union raised concerns that other countries may follow suit. In a recent two-wave survey experiment, Nikoleta Yordanova, Mariyana Angelova, Roni Lehrer, Moritz Osnabrügge and Sander Renes investigated what arguments could sway citizens’ support for EU membership in a hypothetical EU-exit referendum in Germany. Reminding respondents that their country may be outvoted in EU decision-making significantly increased support for leaving the EU, while other arguments had little impact. These sovereignty concerns were particularly prominent among disengaged voters, as well as those who knew little about the EU or were already predisposed against it.