Does a society that embraces and fulfills equality of opportunity(rightly interpreted) necessarily provide social mobility? In a word,No. To illustrate the point, consider a society whose population isdivided into deciles by household income (the income of adult partnerscombined and of each adult living alone and as sole head ofhousehold). Identify social mobility in this society with the chancethat any given individual will as an adult live in a household thatplaces in a higher decile of household income than the one in which hewas placed as a child, along with the chance that he will end up in alower decile. Social mobility in the society is high to the degreethat knowing an individual's decile of family origin is not predictiveof his own decile and low to the degree that this information ispredictive.


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