Davide Barrera, Università degli Studi di Torino, Italy, Klarita Gërxhani, European University Institute, Florence, Bernhard Kittel, Universität Wien, Austria, Luis Miller, Institute of Public Goods and Policies, Spanish National Research Council, Tobias Wolbring, School of Business, Economics and Society at the Friedrich-Alexander-University Erlangen-Nürnberg