Growing competitive intensiveness of globalised markets motivates producers of goods and services from various countries to research mechanisms of producers' behavior and possibilities of using those mechanisms to achieve their own targets. This problem is not only theoretical, but a practical one as well. How can a consumer get his direction among loads of goods and services and how to make his choice with maximum value and minimum expences? Our consumers find an answer to that question intuitively, using their own experience. Entrepreneurs spend a lot of money on demand analysis trying to understand peculiarities of consumer's choice and affect the household behavior.