Wal-Mart suppliers undergo sustainability ranking

04/17/2013 | GreenBiz.com

Wal-Mart's supplier sustainability index is prompting change at other companies. As they answer the retail giant's questions about their operations, suppliers are also using the initiative to strengthen the case for their own sustainability efforts, this article notes. Wal-Mart's index ranks suppliers from best to worst in each category and then shares the rankings with the company's buyers.

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