Specialty stores are small stores which specialize in a specific range of merchanise and related items. Most stores have an extensive width and depth of stock in the item that they specify in and provide high levels of service and expertise. The pricing policy is generally in the medium to high range, depending on factors like the type and exclusivity of merchandise and ownership, that is, whether they are owner operated or a chain operation which has the advantage of bulk purchasing and centralized warehousing system. They differ from department stores and supermarkets which carry a wide range of merchandise.