Hernan Muntaner

Wal-Mart Purchasing Chief Hernan Muntaner has a dream: teaming the giant retailer with soda and snack maker Pepsi to buy potatoes jointly for a lower price than either company can get on its own. That would allow both to earn more money on the chips and spuds they sell in Wal-Mart's supermarkets. So far, Pepsi isn't playing along.

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