“…The proliferation of these data has effectively enabled political scientists to put many empirical questions under rigorous tests. In particular, researchers investigated whether VAAs influence voting behaviour (Marschall and Schmidt, 2008;Walgrave et al, 2008;Garzia, 2010), participation and voter turnout (Fivaz and Nadig, 2010;Hartwig, 2010;Ladner and Pianzola, 2010), and have used VAA data to test questions relating to voting behaviour, pledge fulfilment, policy congruence and the dimensionality of political space (Schwarz et al, 2011;Talonen and Sulkava, 2011;Katsanidou and Lefkofridi, 2012;Wheatley et al, 2012).…”