2. Predictability. The plan is made before the action, which aims to achieve the goals of the future, and to accomplish the next tasks and tasks. But in the wake of the global financial crisis, the risks of monetary and fiscal policy have been highlighted and central Banks have been given additional responsibilities. Deciding whether or not to rescue a particular financial institution, whether it guarantees system stability or other reasons, has obvious consequences for individual investors. In ancient China, the term "sedan" was used to refer to the sedan chair. When western cars entered China in large Numbers, it was the closed square cars that were popular in the west