“…In an effort to pin down the characteristics of the typical green consumer, several studies have attempted to identify socio-demographic characteristics which might predict such green behaviour (Roberts, 1996;Straughan and Roberts, 1999;Wagner, 1997) but the results of such studies have been inconclusive and often contradictory. Other authors have taken a global approach in an attempt to find common factors in environmental behaviour across different countries, with limited success (Bhate, 2002), or have acknowledged the need to segment further the vague category of environmentally Marketing Sustainability 4 concerned consumers (Zimmer, Stafford and Stafford, 1994). In addition to this uncertainty, consumer response in general to green marketing efforts has fallen short of marketers' expectations (Davis, 1993), with a noticeable decline in consumer interest leading to the demise of certain green brands (Thomas, 2003), although currently green issues are noticeably back on the agenda (Tiltman, 2007).…”