Intergenerational Social Mobility: The United States in Comparative Perspective
September 2006
Emily Beller and Michael Hout examine trends in U.S. social mobility, especially as it relates to
the degree to which a person’s income or occupation depends on his or her parents’ background
and to the independent contribution of economic growth.
They also compare U.S.
social mobility with that in other countries. They conclude that slower economic growth since
1975 and the concentration of that growth among the wealthy have slowed the pace of U.S.
social mobility.
In measuring mobility, economists tend to look at income and sociologists, occupation. The consensus
among those measuring occupational mobility is that the average correlation between the
occupations of fathers and sons today ranges from 0.30 to 0.40, meaning that most variation in
the ranking of occupations is independent of social origins. Those measuring income mobility
tend to agree that the elasticity between fathers’ and sons’ earnings in the United States today is
about 0.4, meaning that 40 percent of the difference in incomes between families in the parents’
generation also shows up in differences in incomes in the sons’ generation.
In international comparisons, the United States occupies a middle ground in occupational
mobility but ranks lower in income mobility. Researchers have used the variation in mobility to
study whether aspects of a country’s policy regime, such as the educational or social welfare systems,
might be driving these results. There is as yet, however, no scholarly consensus about the
sources of cross-national differences in mobility.
