Wal-Mart to Unveil Sustainability Index: Reports

Wal-Mart Stores here will discuss the development of a new index that measures the "social and environmental impact" of its products at a press conference.

BENTONVILLE, Ark. — Wal-Mart Stores here will discuss the development of a new index that measures the "social and environmental impact" of its products at a press conference today, reports said yesterday.

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