1. When in Doubt, Use Proxies
2. Bakker R. Hooghe L. Jolly S. Marks G. Polk J. Rovny J. Steenbergen M. & Vachudova M. A. (2020). 2019 Chapel Hill expert survey. Version 2019.1. Chapel Hill NC: University of North Carolina Chapel Hill. Available on chesdata.eu
3. A Threatening Horizon: The Impact of the Welfare State on Support for Europe
4. Beaudonnet L. & Di Mauro D. (2012). Support for Europe: Assessing the complexity of individual attitudes. Beyond Euro-skepticism: Understanding Attitudes towards the EU’. European Integration Online Papers (EIoP) Special Mini (2). http://eiop.or.at/eiop/pdf/2012-009.pdf
5. European Integration and Income Inequality