But let's remember that the increased participants were basically in the interest of the economy and were attracted to new tokens that they felt were promising. According to this model, the interest rate decision depends on the supply of savings and investment needs, money supply, money demand, four factors, cause a change in the saving investment, money supply and demand factors will affect the level of interest rates. This theory is characterized by general equilibrium analysis. Mr Draghi added that this meant that the ECB staff and its council were "cautious" in the "bold" stance of inflation. Is one of the more common usage refers to various enterprises independent, non-profit organization (can be legal person, also can not), and can be further divided into companies and enterprises, the latter such as partnerships, sole proprietorship enterprise, individual industrial and commercial households, etc. Point five: look at the repayment risk. Reimbursement risk fee, is that when investors corresponding borrower overdue list creditor's rights or bad debts, so risk fee reimbursement amount of account can be used to repay the principal and interest first, this will let next fall risk level, safety coefficient is relatively high, so it is more important, investors when the choice must be made sure. Activity diagrams must be used in alignment along with other modeling techniques like interaction diagrams and State diagrams. The main reason behind with your diagrams would be to model the task flow behind it being designed. these Diagrams are also helpful for analyzing a use case by describing what actions have to take place then when they ought to occur, describing an elaborate sequential algorithm and modeling applications with parallel processes.