formula for profitability index While many key factors need to be taken into account when making plans, the core issue always is when to exit the transactions that have been entered. This actually includes three exit plans. For one thing, there must be a plan to accept losses, and to pull out if the deal loses. Second, there must be a plan to accept a profit, and once the profit target is met, it will be satisfied. Third, there must be a plan that allows the trader to exit the transaction in the event that a significant change is not occurring for a considerable period of time. After Ziddu becomes its subsidiary, Longfin will provide financial services based on cryptocurrency through Ziddu. To avoid huge core technology in the form with the original electronic chemical materials business competition, the company also announced the proposed wholly owned subsidiary of zhejiang KaiSheng fluorine chemical 100% equity and zhejiang borui electronic science and technology of 100% equity as a target for public stock transfer, the listed price is RMB 940 million. And originally borui company and responsible for implementing the 2016 KaiSheng non-public stock high purity electronic gas project (phase 1, 2), and fluoride special gas project will be sold with borui company equity transfer at the same time, the company will the three offering investment project has been used and the rest of the fund-raising (through borui back after the company equity transfer and interest) added $1.09 billion permanent JuHua stock liquidity. Most western interest-rate determinism focuses on the analysis of supply and demand comparisons, arguing that interest rates are a price. The difference lies in what supply and demand determines interest rates. For example, Marshall's real interest rate theory emphasizes the real factors of non-monetary factors - productivity and the role of economy in determining interest rate decisions. Productivity is expressed by marginal propensity to invest, and the marginal propensity to save is expressed. “We are a trade specialist so all retail enquiries and enquiries from smaller independent installers are handled by our customers, which means they are sharing directly in the success of our campaign.” Value is the core concept that defines the existence of human beings. It is the essence of human existence and development. All human emancipation behavior, namely the essential rule (humanity) for the creation of the self and to create and eventually reached for the essence of the law in order to maintain and development of a simple statement is all human practice is for maintaining and developing the essence of self, all value form from the category, cannot be separated from this category. Values in many areas have specific forms, such as social value, personal value, economic value, legal value, etc. The existence of these values is the essential nature of the category of human beings in different fields. At the same time, because there are some conceptualized maintenance and development of human thought there is no actual physical force, such value is defined separately as nominal value. In 2018, we must: Tubes in today's world is filled with harmony and polarization phenomenon, but still people are eager to build a better future, enable people to realize self-management, and supporting the social institutions really serve the people.