Citigroup downgrades Wal-Mart to hold on unionization concern
March 10, 2009 at 07:49 AM EDT
Citigroup Inc. lowers its rating on Wal-Mart Stores Inc. to hold from buy on Tuesday, citing concern that passage of the Employee Free Choice Act, a bill that makes it easier for employees to unionize, would raise the retail giantâs labor costs and hurt its competitiveness.