The most different with other countries,at America the freedom of economy is very big,the act of goverment is limit,that make America social move fast,everyone can go to the hightest of their working.

• 因为与其他大多数国家不同的是，在美国拥有的经济自由相当多，政府扮演的角色相当有限，这使得美国的社会流动性极大，任何人都有可能透过自己的努力迈向巅峰。