“…This change has been driven by increasingly complex product choices, heightened use of technology, a switch in focus from cost to best value, and in line with this paper's perspective, an increased consideration of environmental issues [Zheng et al, 2007;Beukers et al, 2006;Paulraj et al, 2006;Gelderman, van Weele, 2005;McCue, Gianakis, 2001;Cavinato, 1999;Reck, Long, 1988;Caddick, Dale, 1987]. Many authors agree that procurement has become increasingly recognized at the corporate level with some suggesting that it should be considered equally important like other strategically significant functions such as marketing, finance, and operations [Paulraj et al, 2006;Cavinato, 1999;Rink, Fox, 1999;McIvor et al, 1997]. Despite this, it has been observed that public sector procurement is still focused on reducing transaction costs and fails to consider the total acquisition costs of products [Staples, Dalrymple, 2011].…”