Diversification of securities, the establishment of a scientific and effective portfolio of securities; 1. Enterprise income tax The one solution they have come up with to aid arouse auto system and to assist visitors to spend some money is always to request more loans and borrow millions if not trillions of dollars. Numerous people feel that this can be a method which may work. While others are worried since it will press the nation farther into debt. This makes us ask the question of, "When is it to certainly ask for money." Time factor a transaction's expected time is a question worth considering. Competition refers to the economic subject in order to maintain and expand their own interests and take all sorts of behavior, the behavior of self-protection and expansion efforts in product quality, price and service advantages, varieties, etc.