Toward the achievement of Barro and Sala-i-Martin in 1992, Yao and Zhou (2003) considered it unsure because of the difference of external environment, in which people moving from a one region to another in the United States costed a little, but people moving from a country to one another Toward the achievement of Barro and Sala-i-Martin in 1992, Yao and Zhou (2003) considered it unsure because of the difference of external environment, in which people moving from a one region to another in the United States costed a little, but people moving from a country to one another suffered from serious obstacle of social system. suffered from serious obstacle of social system.