“…Judging by the number of studies published, considerably less time and effort has been devoted to this area than to the issue of segmentation. Prominent works to emerge in this field include Bendapudi et al (1996), Webb et al (2000), Wymer and Starnes (2001), Wisner, Stringfellow, Youngdahl, and Parker (2005), Briggs et al (2007), Ranganathan and Henley (2008), Vecina, Chacón, Sueiro, andBarrón (2012), Veludo-de-Oliveira et al (2013) and Lee, Won, and Bang (2014) as well as research based on the commitment-trust model developed by Morgan and Hunt (1994), Sargeant and Lee (2004), MacMillan, Money, Money, and Downing (2005) and Sargeant et al (2006). Bendapudi et al (1996) merge relevant research on marketing, economics, sociology and social psychology in an effort to further theoretical understanding of helping behaviour and posit a model which serves as a guide for NGOs.…”