It holds more than 5.3 million shares of Wal-Mart, or well under 1 percent of its shares.And leaders of New York City's pension funds are planning to vote their 4.7 million company shares against five Wal-Mart directors up for re-election next month."The bribery allegations are damaging," New York City Comptroller John Liu said in a statement. "But reports of a widespread cover-up, involving Wal-Mart's top executives, could have even more devastating consequences."It's still unclear how Wal-Mart shoppers will react. Robert Passikoff is president of Brand Keys Inc., a New York customer research firm that measures the image of companies using an index that rates them based on location and value, range of merchandise, store reputation and shopping experience.He says Wal-Mart consistently scores at about 90 on a scale of 1 to 100 on the index even during periods when its reputation is attacked.