A data processing system includes a distributing device that distributes edited advertisement data and display terminal devices that display the edited advertisement data distributed to a first place in a predetermined territory. The display terminal devices are each provided with a first reader/writer configured to read out from and/or write in an IC card having stored memory identification data. The data processing system also includes a second reader/writer configured to read out from and/or write in an IC card. The data processing system also includes a hysteresis management device that manages hysteresis data HD1, HD2 from the first reader/writer, correlated with the memory identification data, and hysteresis data HD1 from the second reader/writer, correlated with the memory identification data. The data processing system further includes a hysteresis analysis device that correlates the hysteresis data HD1, HD2 for each of the memory identification data to generate analysis data.