Why don't large South African corporates feature on the list of innovators in emerging markets?

"A recent Economist special report on innovation in emerging markets is a fascinating read (The world turned upside down, a special report on innovation in emerging markets, April 15, 2010). The report highlights that emerging markets are no longer simply about cheap labour. Increasingly their largest companies are developing a reputation for innovation - of a particular type...These innovations often revolutionise entire industries and threaten the dominant position of traditional western corporations...to what degree does the phenomenon described as the constraint-based innovation apply in the South African context? "

Featured in Business Day, 20 March 2010.