“…Compared to the exhaustive literature on political parties or the abundant research on political participation among young people, there are not many studies focusing on these party organisational branches. Apart from the abovementioned works, we can find just a handful of studies throughout the last decades, such as those of Recchi (1998), Barberà et al (2002), Bargel and Petitfils (2009), Dechezelles (2009), Espinoza and Madrid (2010), Ninyoles (2015), Pickard (2015), Alarcón (2017Alarcón ( , 2021, Rainsford (2017), de Roon (2019 and Weber (2020). This article adds to this literature by focusing on a specific aspect of YPOs -namely, explaining activism among members of these organisations.…”