Comprehensive foreign media reports on November 25，The official website of the University of Pennsylvania Pennsylvania is called，Recently, the associate professor of the Department of Sociology Song Xi of the School of Social Sciences Song Xi made a long -term evaluation of the liquidity of American society。Research results show，In the past 150 years，The social liquidity of the American population Bet365 lotto review decreases sharply，Especially people born after the 1940s。In the past 40 years，The intensification of economic inequality does not affect intergenerational flow as many people expect。

This research mainly uses American men as research objects。Research results show，Male young people born before 1900 have more opportunities to flow upward than their father。Because at that time，The United States is shifting from agricultural society to industrial society，This transformation makes the young generation of male young people no longer be the farm work made by the parents，Instead, I entered the field of bet365 Play online games manufacturing，Become a worker、Blacksmith、Mudmith、Truck driver and salesperson。Compared with their father，They have gained a higher socio -economic status。But with the decline in the prestige of some professional and social and social，This trajectory begins to change slowly。Taking the cashier as an example，In the 1850s，If you can read、Writing、Calculation，can become a cashier，At that time, it was a work with a high social status at that time。But over time，The socio -economic status of cashier has declined。Like a scientist、architect、Engineers and other high professional bet365 live casino games occupations，Its socioeconomic status will always remain stable。

The author thinks，Start from the first generation of the baby，The relationship between the two generations has become closer。And the economic status of the current generation of children is very similar to the parents of the parents，and it is difficult to change。In simple terms，The achievements of children in society reflect their family background。other，Although since the 1970s，US income inequality begins to intensify，But the trend of social liquidity is basically stable。The author's proposal，Promoting social liquidity through family bet365 best casino games intervention policy is a difficult task。In the future, we will collect more other data，More authenticity reflects the social liquidity status of the American population。(Zhao Qi/Compilation)