Retail markets and shops have a very ancient history, dating back to antiquity. Retailing involves the process of selling consumer goods or services to customers through multiple channels of distribution to earn a profit. Retaileras satisfy demand is identified through a supply chain. Retailers typically make a variety of strategic level decisions including the type of store, the market to be served, the optimal product assortment, customer service, supporting services and the store's overall market positioning. Once the strategic retail plan is in place, retailers devise the retail mix which includes product, price, place, promotion, personnel and presentation. In the digital age, an increasing number of retailers are seeking to reach broader markets by selling through multiple channels, including both bricks and mortar and online retailing. Digital technologies are also changing the way that consumers pay for goods and services. Retailing support services may also include the provision of credit, delivery services and a range of supporting services.