Shopping malls have acute effects on the retail business. In one regard, malls concentrate competition, allowing people a chance to shop around more than they normally would. On the other hand, malls may serve to encourage people to spend more - different types of stores might benefit from having people already spending in the malls.
Shopping malls to have an impact on the business of retail stores. Some people enjoy walking around the mall. Whether they do it simply for exercise or to go shopping, being there increases the chances of purchasing something. Even window shoppers make the occasional impulse purchase. There are many people who would prefer to shop a mall where all stores are conveniently located together in a group rather than go to several different places.