In chain production - trade appear more entities: manufacturers, distributors, retailers and direct consumers. If relations between them simplify, we can conclude that the most important link in this chain are consumers. We could say that everything happens precisely to meet the needs of consumers (although for certain types of production or ranking military industry for example, the arms trade and so on. This certainly can not say). Consumer is every one for you or your family supply certain products or using certain services. This broad definition allows each of us can put ourselves in the category of consumer. Consumers are the largest group in the world. Using the principle of deduction, we can conclude - when a group is considered most important and is the most numerous, it should be the most powerful in certain social relations.