A "discount mall" is a place where you can find products and goods at lower prices compared to regular stores. It offers a variety of items at discounted rates. Full definition
The discount publishers (in history) published directly to the front discount shelves of big bookstores or discount mall stores. (deanwesleysmith.com)
The outlets for discount publishers consist of discount shelves in normal bookstores, discount mall stores, and other types of discount stores. (deanwesleysmith.com)