Explain the Freudian system of personality as it might apply to the behavior of different consumers. Freudian system of personality includes three parts: id, ego, and superego. The id was the most primitive part in the system of personality. It was stay inside people’s mind when they were born. The compositions of id were basic human needs, such as hunger, thirst and sex. The id came from the individual requirement. The individual requirement must be immediately satisfied. For example when the baby hungry, it must be nursing immediately, and never consider whether mother busy or not. In consumer behavior, the id was shows out like when people hungry they will find the nearest and most delicious restaurant, as the result of that the restaurant’s location and kind of food was the most important thing should be verified first. The ego came out after people born, develop from id in the real environment, the id has many various requirement, by this if the requirement can’t be satisfied immediately from the real environment, the people must accommodate realistic limit, and learn about how to get needs in reality. For example, when I want to buy a new computer, I really like the new Mac pro, but the price was too high to buy it, I don’t have enough money, so that I buy Mac air, that was how ego get out. The superego was standing on the top level of human control system in personality structure. It is due to the individual was living in the social. It accepts the social culture and ethics education. The superego has two important parts. One is the ego ideal, that means the person behavior standards should be accord with the personal ideal; second is conscience, it regulate people’s