In other words, they are constantly studying the competition and lowering their price so they'll be the low cost leader. (inc.com)
If a store carries medium - to low - cost food, it's vulnerable to cost pressures from competitors, including the big - box discount cost leaders and grocery stores. (petbusiness.com)
That doesn't mean there are no cost differences, but the cheapest option depends entirely on the type of trading you do, and there's no clear cost leader. (moneysense.ca)