“…The FT has been analysed with behavioural microsimulation models (for instance by Aaberge et al, 2000;Fuest, Peichl, & Schaefer, 2008;Paulus & Peichl, 2008;Peichl, 2014) provides a recent survey. UBI and other members of the NIT class have also been analysed with different results (see for instance Aaberge et al, 2000Aaberge et al, , 2004Clavet, Duclos, & Lacroix, 2013;Colombino, 2015;Colombino & Narazani, 2013;Horstschräer, Clauss, & Schnabel, 2010;Islam & Colombino, 2018;Jessen, Rostam-Afschar, & Steiner, 2017;Scutella, 2004;Sommer, 2016). Islam and Colombino (2018) examine in various European countries the case for an optimal tax-transfer rule in the class NIT+FT, assuming all incomes are treated according to the same rule.…”