New rules of marketing
By Simon van Wyk
In How Brands Grow, Byron Sharp writes that “The marketing world is extraordinarily complex, but textbooks fail us when they suggest that this complexity can never be mastered.”
He argues, however, that it’s possible to “come up with some simple rules for ‘branded competition for sales’ (i.e. competition to build a sales base with considerable lasting capability).” Here are his rules, based on empirical evidence:

