Although Furman advocates a higher minimum wage (as Wal-Mart does), he argues that even modestly higher Wal-Mart worker wages would eliminate the company’s profits or push up prices, thus implicitly hurting them.

But an Economic Policy Institute team of economists authoritatively criticized Global Insight’s methodology and judged its projected savings from shopping at Wal-Mart “implausible.” For example, EPI critics say, the Global Insight report credited Wal-Mart with reducing prices it does not affect, like other services that make up 60 percent of the consumer price index. In any case, the EPI economists argued, if the savings are as big as claimed, Wal-Mart could raise wages and keep prices low.