“…However, it would be wise to treat this effect as a potential outlier. Indeed, given the size, and with so few other European experiments testing the impact of party leaflets (studies so far have tested canvassing, for example, Ramiro, Morales and Jiménez-Buedo 2012; Pons and Liegey 2018;Bhatti et al 2016;Cantoni and Pons 2016;Pons 2018;Nyman 2017, or phone calls, e.g., Foos and de Rooij 2017), replication and further research into the effects of different designs and types of leaflets is merited.…”