“…Regarding the first of these three research areas, there is ample research into why firms adopt codes of conduct (e.g., Weaver, 1993;Esbenshade, 2001;van Tulder and Kolk, 2001;Bondy et al, 2004;Graafland, 2004), and some emerging research into why firms adopt IFAs (Miller, 2004;Riisgaard, 2005;Egels-Zandén, 2008a). There is also some research into why labour unions prefer IFAs (Justice, 2003;Frundt, 2004;Miller, 2004;Lipschutz, 2004;Roman, 2004;Riisgaard, 2005); existing research, however, provides few answers as to why NGOs promote codes rather than IFAs.…”