Dollar General will open 450 new stores and remodel or relocate about 400 existing stores.
"It's survival of the fittest," he said, adding that some residents have complained about the quality of service in existing stores.
Still, Rite Aid filled about 4 percent more prescriptions in its existing stores as it drew some of the patients who could not fill their Express Scripts prescriptions at Walgreens stores during those companies' dispute, now resolved.
Ikea, which trades from 315 stores in 27 countries, hopes to double sales to about €50bn (£36by) by 2020 through sales growth at existing stores, new stores and new markets.
While the gross margins of the grocery business are about 18 percent, well below those of retail, which are about 30.5 percent, groceries both drive visits and make existing stores more profitable, said Colin McGranahan, an analyst with Sanford C. Bernstein.
It's about three times larger than any of Pucci's existing stores, and a model for flagships of the future, Mr. Dundas said.
Dollar Tree plans to open 235 new stores and relocate 90 existing stores.
Moves from existing stores to smaller spaces nearby are planned for Short Hills, N.J., and the flagship store on Madison Avenue.
But there will be more remodeling and relocation of existing stores, creating jobs in Wal-Mart's store planning group.
It could open still more stores in its major markets, but that would risk cannibalizing its existing stores' sales.
