non profit technology In economic terms, the benefits of holding any two currencies should be equal in the equilibrium of the foreign exchange market, which is: Ri=Rj (interest rate parity). Here, R stands for yield, and I and j represent currencies of different countries. If the benefits of holding two currencies are unequal, you will have A arbitrage: buy A kind of foreign exchange and sell B foreign exchange. The establishment of shares refers to the pledge of the pledge of shares, which can be transferred according to law. The quality of the shares shall be entered into a written contract and shall be registered with the securities registration authority, and the pledge contract shall take effect from the date of registration. The shares may not be transferred after the quality of the shares, except as agreed by the pledgor and the pledgee. Upon the consent of the pledgee, the proceeds from the transfer of the shares by the pledgee shall be paid to the pledgee to liquidate the secured claims or to the third party as agreed with the pledgee. However, the company shall not accept the shares of the company as the subject matter of pledge. Financial staff are used to dividing the investment payback period into long-term, intermediate and short-term periods. The term usually refers to more than five years, short term generally refers to a period of less than one year, and the middle term is somewhere in between. Managers also use long, medium and short term to describe the plan. Long-term plan describes the organization in a quite long period (usually more than 5 years) and the development direction of policy, regulation on the group's various departments over a longer period of time in some activities should reach the goal and requirements, mapped the organization long-term development blueprint. Short-term plans specifically provides for all departments of an organization in the current stage, to the future the shorter period especially in the recent period of time, which should be engaged in activities, engaged in such activities should meet the requirement, and thus provides a basis for the ACTS of all members of the organization.