The study of the needs of the people - is one of the important tasks of the commercial and marketing. Reinforced by the possibilities of the material needs of buyers is required. Demand is a certain thing and it is possible to learn, to calculate, to predict or to plan. First, the entrepreneurs translate purchasing demand to concrete property, and then to self-interest. This is one of the centeral task of commerce. At this time, the trade term is meeting the needs and requirements and offered everything for consumption or buyers.

            Payment is carried out with the help of the goods and the buyer's property to the demand place in the market. Here, understood both of available and possible trade of buyers commodity as the market. Market provide enterpreneur with payment of commodity. Under normal circumstances, payment amount should be over some from owner’s expense. Above finalized, can be set so that, the main purpose of commerce is to translate needs of people to the interest of the company.

            Time-tested way of changing demand is the result of improving production. The recommendations are aimed to reduse cost of goods and increase request. Increasing demand for cut goods can be paid expense of production volumes increase, raising labor productivity and etc. Nowadays, demands are often affected by increasing commercial efforts, it means that, they give a special importance to present the goods. A more modern way of determining the needs of the market and the pressure on competitors to overcome. This is the most successful way for commercial and marketing.

            During marketing research leading to the increase in of earnings and sales of products based on the company's objectives and resources to improve the capabilities assessed. The main objective of the commerce way is to achieve a high level of maximum consumption. In this case, the goal of the company is to based on "high demand is better" principle of pressure to the consumer. At that time, the company’s main attention is to focus all possible ways to encourage on the demand for goods. Another goal is to provide buyer satifsfied, not only to increase consumption. Companies connected their welfare with the recipient's well-being.