“…Many customers are extremely irritated by the constant barrage of``junk mail'',``junk call'' and``junk e-mail'', and consider it an intrusion of privacy (Allen, 1997;Bloom et al, 1994;Dewitt-Elmer, 1994;Geller, 1996;Hoekstra and Zwart, 1993;Maynard and Taylor, 1996;Petrison and Wang, 1993;Smith, 1998). It is important to note that the response rate to direct mail marketing is only one to two per cent (Geller, 1996), which raises the question of whether, when 98 to 99 per cent is being thrown away, there is an adverse impact on the environment from direct mail marketing (Maynard and Taylor, 1996;Petsky, 1994). However, according to one of the anonymous reviewers of this paper:…”