Wal-Mart bans bulk sales of rice By Our Foreign Staff Last Updated: 2:42am BST 24/04/2008 The American supermarket chain Wal-Mart yesterday banned bulk sales of rice at its cash-and-carry businesses, as the global food shortage and soaring price of food began to make an impact in the largest consumer nation. The company's bulk supply division, Sam's Club, announced that it would sell a maximum of four bags of rice to each customer, after Costco, a rival chain, said it would place caps on some rice and flour sales in California. The limits were imposed after some customers, apparently alarmed by...