Which historical retail price war of the 1990s is credited with establishing the 'everyday low pricing' (EDLP) strategy as a mainstream alternative to high-low promotional pricing?

Before modern retail pricing strategies became sophisticated algorithms and dynamic models, one historical price war fundamentally transformed how retailers approached competitive pricing. This watershed moment in retail history established principles that continue to influence pricing strategies today, from loss leaders to psychological pricing. Test your knowledge about this pivotal event that reshaped retail economics forever.

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The Walmart-Kmart price war of 1993-1994, where Walmart's EDLP strategy ultimately proved more sustainable than Kmart's promotional pricing
The Amazon-Barnes & Noble price war of 1997, which introduced algorithmic pricing to mainstream retail
The Target-Sears price war of 1991-1992, where Target's 'expect more, pay less' philosophy emerged victorious
The Costco-Sam's Club price war of 1995, which established membership-based bulk pricing as a competitive retail model