“…Literature also suggests that bottom-up approaches such as at a product-level as demonstrated by Glew and Lovett (2014), Koh et al (2013), Smith (2012) have been widely assessed. However, the limited research practitioner-oriented studies (see: Network for Business Sustainability (2012), Sustainalytics (2011), Mineral Products Association (2013) and academic and research works (refer to: Bassioni et al (2004), Yongvanich and Guthrie (2005), Singh et al (2007)) are typically lacking theoretical foundation and methodological robustness.…”