Under conditions of market economy profound knowledge of the market and the ability to apply modern tools of influence on the situation in the market skilfully are of special value for successful work of its subjects. In modern situation it is necessary not only to update technologies and processing equipment, to study domestic and foreign market, to conduct marketing researches and to reveal the possibilities, weaknesses and vulnerable point of competitors for successful competitive struggle of the enterprise, but also to influence the own competitiveness and to define its basic directions.