From an international standpoint, Walmart's big jump into Africa should make many other North American firms take notice, and not just in retail. When a world leader in its field turns to Africa, then something must have changed to attract them there. Marxists would argue that capitalism must expand to survive, and Africa represents the last frontier market for retail. But capital does not pursue profit-less endeavours, and retailers are among the most risk-averse businesses (how many standard US retailers even view Canada as too risky a market?). South Africa may still have significant problems, but the gradual rise of a middling market there and in many other African economies cannot be ignored. Walmart will mark a tipping point for consumer oriented firms to discover that Africans want their stuff.