“…Furthermore, there are very few nationally representative longitudinal studies on financial debt during early adulthood (Dwyer, Hodson, & McCloud, 2013;Dwyer et al, 2011Dwyer et al, , 2012Houle, 2013Houle, , 2014Sweet, Nandi, Adam, & McDade, 2013). Mostly Nordic researchers have so far used registerbased data for the analysis of financial problems (e.g., Aaltonen, Oksanen, & Kivivuori, 2016;Kauppinen et al 2014;Oksanen, Aaltonen, & Rantala, 2015). It is particularly difficult for traditional survey methods to reach those who are not in employment, education, or training.…”