A supermarket is a store or market that sells a wide variety of goods including food and drinks, drugs, clothes, and other household products that are consumed regularly. It is often part of a chain that owns or controls (sometimes by franchise) other supermarkets located in the same or other towns; this increases the opportunities for economies of scale. Supermarkets usually offer products at low prices by reducing margins. To maintain a profit supermarkets attempt to make up for the low margins with a high volume of sales.
A larger supermarket combined with a department store is known as a hypermarket.
The first supermarket was Piggly Wiggly, but A&P; was the most successful of the early chains, having become common in American cities in the 1920s. Supermarkets proliferated along with suburban areas after World War II. Supermarkets in the USA are now often found matched with department stores in strip malls and are generally regional rather than national.
It was formerly common for supermarkets to give trading stamps.
In Britain, Denmark and other European countries the proliferation of out-of-town supermarkets has been blamed for the disappearance of smaller, local grocery stores and for increased dependency on the motor car (automobile).
