The figure is somewhat lower in developed countries but is highly significant in the developing world. For countries such as South Africa, India and Brazil, public procurement constitutes 35%, 43% and 47% of GDP respectively while for high-income countries, the figure is 13% -17% (Perera 2010). In contrast with private sector procurement, public procurement is more easily regulated by government; for the private sector, compliance with sustainability norms is usually voluntarily and linked to a company’s policy on Corporate Social (and Environmental) Responsibility. It is unrealistic to expect an individual consumer set aside price considerations in favour of “loftier” principles of social justice and environmental protection when he or she may be struggling to meet basic survival needs.