3.2 comparison research method(比较研究方法) Only after comparison,you know which one is better(有比较才有鉴别) 比较方法的最高级别一最优化方法(optimization method) It is a big and famous study area and there are many ready to use technique and methods!! 3.3 Dynamic research method(动态研究方法) reasons: (1)objective economic phenomenon is under development constantly(客观经济现象不断发展变 化)3.2 comparison research method(比较研究方法) Only after comparison, you know which one is better(有比较才有鉴别) 比较方法的最高级别 — 最优化方法(optimization method) It is a big and famous study area and there are many ready to use technique and methods!! 3.3 Dynamic research method(动态研究方法) reasons: (1) objective economic phenomenon is under development constantly(客观经济现象不断发展变 化)