“…Other studies, however, suggest no association between relative income and subjective wellbeing (Diener et al, 1993;Deaton & Stone, 2013;Kifle, 2014;Luo et al, 2016), or even a positive association between the two (Senik, 2004(Senik, , 2008Graham & Felton, 2006;Kingdon & Knight, 2007;Knies et al, 2008;Clark et al, 2009;Dittmann & Goebel, 2010;Davis & Wu, 2014;Ifcher et al, 2017;Bhuiyan, 2018). Defining the 'relative others' to whom people comparei.e., the reference group evidently lies at the core of this literature.…”