The U.S. Supreme Court, heeding calls from companies to consider curbing class actions, agreed to rule on whether Wal-Mart Stores must face a gender-bias suit brought on behalf of about 1 million of its workers. The suit, the largest ever of its kind, alleges that the retailer paid women less than men for the same jobs and gave female workers fewer promotions. The High Court's ruling on the case could affect sev-eral pending suits involving Costco, Altria, and other major employers. Separately, Wal-Mart, the largest private employer in the U.S., announced that it will cease paying staff an additional $1 an hour to work Sun-days, taking a bite out of its expenses.
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