Category killer

Retailer with a large product range

A category killer is a retailer, often a big-box store, that specializes in and carries a large product assortment of a given category. Through their wide merchandise selections, low pricing, deep supply, large buying power, and market penetration, they have a comparative advantage over other, smaller retailers, and can greatly reduce the sales of rival retailers within that category, in the area and beyond it.

This keyword could refer to multiple things. Here are some suggestions: