FIELD: computing technique, possibly automated procession of large volume of data concerning good sale, for example objects of real estate. SUBSTANCE: system includes unit for introducing data related to pretending customers, unit for generating signal of demand function; unit for storing data related to each pretending customer; unit for storing permanent information concerning to customers; unit for generating signal of demand for new goods; unit for generating signal of good supply; subsystem for forming signals of commercial cost of new goods and cost of old goods; message formation unit; central control device, units for predicting prices in primary and secondary good markets; unit for calculating credit for predetermined time period; unit for finding function extremum; M-channel differential amplitude pulse analyzer; counter unit; M multipliers; source of M reference voltages; switching unit; M-inlet adder; comparator; unit for calculating investments; switch; unit for simulating consumption of new goods. EFFECT: possibility for monitoring process of good sale with use of credit resources and capital received after sale of old goods in secondary market. 3 cl, 3 dwg
