One 1992 study stated that 26% of American supermarket retailers pursued some form of EDLP, meaning that the other 74% promoted high-low pricing strategies [REF].
A 1994 study of an 86-store supermarket grocery chain in the United States concluded that a 10% EDLP price decrease in a category increased sales volume by 3%, while a 10% high-low price increase led to a 3% sales decrease.