In an ideal town, where the shops are seen as part of society's necessities, shops would be widely and homogeneously distributed. At present, large parts of modern towns have insufficient services. New shops which could provide these services often locate themselves near the other shops and major centres, instead of locating themselves where they are needed. It is also true that many small shops are unstable (in the USA, two-thirds of the small shops that open go out of business within a year). Obviously the community is not well served by unstable businesses; once again, economic instability is largely linked to mistakes of location.