When do you really know that a store format has made a big impact? When it spawns a host of imitators.
Such was the case when the entry of membership warehouse clubs led supermarkets to debut club-pack sections and the growth of category-killer retailers prompted supermarkets to unveil category-specific, store-within-store sections.
Now the hot format is the dollar store. Based on a relatively simple concept, it is one of the fastest-growing retail segments. A number of dollar