Table 1.

IB metrics assessed through quantitative self-reports.

	IB metric	Description	Primal reference scale	Reference study
IB-related personality traits	Impulse buying tendency	Individual disposition to buy on impulse	Rook and Fisher, 1995	Kacen and Lee, 2002; Jones et al., 2003; Vohs and Faber, 2007; Parboteeah et al., 2009; George and Yaoyuneyong, 2010; Sun and Wu, 2011; Hubert et al., 2013; Liu et al., 2013; Serfas et al., 2014; Chen and Wang, 2016; Das, 2016; Olsen et al., 2016; Chung et al., 2017; Khachatryan et al., 2018; De Vries and Fennis, 2019; Meng et al., 2019
			Weun et al., 1998	Beatty and Ferrell, 1998; Kacen and Lee, 2002; Adelaar et al., 2003; Chih et al., 2012; Mohan et al., 2013; Shukla and Banerjee, 2014; Bellini et al., 2017
			Verplanken and Herabadi, 2001	Silvera et al., 2008; Lucas and Koff, 2014, 2017; Dhaundiyal and Coughlan, 2016; Olsen et al., 2016; Bossuyt et al., 2017; Liu et al., 2019
	Overall consumer impulsiveness	Cross-cultural disposition to purchase impulsively	Sharma et al., 2014	Sharma et al., 2014
			Mittal et al., 2016	Mittal et al., 2016
	Impulsive behaviour	Individual disposition to act on urges with little deliberation or evaluation of consequence	Puri, 1996	Sharma et al., 2010; Hubert et al., 2013, 2018
			Whiteside and Lynam, 2001; Cyders et al., 2007	Lucas and Koff, 2014
Act of buying	Impulse buying behaviour	Expression of impulsive buying behaviour during the act of purchase	Mattila and Wirtz, 2008	Mattila and Wirtz, 2008; Badgaiyan et al., 2017; Meng et al., 2019
			Verhagen and Van Dolen, 2011	Verhagen and Van Dolen, 2011; Chung et al., 2017
			Kacen and Lee, 2002	Kacen and Lee, 2002; Lee and Kacen, 2008
			Yoon, 2013	Yoon, 2013
			Badgaiyan et al., 2017	Badgaiyan et al., 2017
	Recent impulse buying behaviour	Individual transient impulse buying behaviour	Lucas and Koff, 2014	Lucas and Koff, 2014
	Impulsive purchase decision	Willingness of a customer to perform the act of purchase	Rook and Fisher, 1995	Parboteeah et al., 2009; Chih et al., 2012; Chen and Wang, 2016
	Felt urge to buy impulsively	State of desire experienced upon encountering a purchasing object	Luo, 2005	Luo, 2005; Chen and Wang, 2016; Meng et al., 2019
			Parboteeah et al., 2009	Parboteeah et al., 2009; Liu et al., 2013; Chen et al., 2019
			Adelaar et al., 2003	Adelaar et al., 2003; Martínez-López et al., 2020