In order to do the analysis, we have to choose subset are rich countries and more than 10 million population as control group. The comparative group by 14 countries: Australia, Belgium, Canada, France, Germany, Greece, Italy, Japan, Portugal, the Netherlands, South Korea, Spain, Britain and the United States.

No matter political philosophy, few people will think, a social lack of social mobility is a good thing. Society almost no opportunity for social mobility will lack of inspire people to struggle. For all people to create opportunity country, their citizens success will maximize their population talent pool.

No matter political philosophy, few people will think, a social lack of social mobility is a good thing. Society almost no opportunity for social mobility will lack of inspire people to struggle. For all people to create opportunity country, their citizens success will maximize their population talent pool.