Upward mobility has fallen sharply in US: study

April 24, 2017
An infographic conveying results by Chetty et al., which reveal that the probability for children to attain a higher income than their parents has dropped dramatically -- from more than 90 percent for children born in 1940 to 50 percent for children born in the 1980s. This material relates to a paper that appeared in the 28 April 2017, issue of Science, published by AAAS. The paper, by R. Chetty at Stanford University in Stanford, CA, and colleagues was titled, 'The fading American dream: Trends in absolute income mobility since 1940.' Credit: Carla Schaffer / AAAS

In a sign of the fading American Dream, 92 percent of children born in 1940 earned more than their parents, but only half of those born in 1984 can say the same, researchers said Monday.

Greater inequality in the distribution of growth is largely to blame, said the findings in the US journal Science.

"Children's prospects of earning more than their parents have faded over the past half century in the United States," said the study, led by Raj Chetty of Stanford University.

"Absolute mobility has fallen across the entire income distribution, with the largest declines for families in the middle class."

Since little data exists linking children to their parents in terms of economic performance, researchers combined US census data with tax records, adjusting for inflation and other confounding variables.

They found the sharpest declines in income in the industrial Midwest, including states like Indiana and Illinois.

"The smallest declines occurred in states such as Massachusetts, New York and Montana," said the study.

Researchers said that trying to boost gross domestic product—or the total dollar value of goods and services produced—in the United States would not suffice to fix the problem.

Rather, a concerted effort to level the playing field is needed, said an accompanying editorial by Lawrence Katz of Harvard University and Alan Krueger of Princeton University.

"In our view, faster growth is necessary but not sufficient to restore higher intergenerational income mobility," they wrote.

"Evidence suggests that, to increase income mobility, policymakers should focus on raising middle-class and lower-income household incomes."

Interventions worth considering include universal preschool and greater access to public universities, increasing the minimum wage, and offering vouchers to help families with kids move from poor neighborhoods into areas with better schools and more resources, they said.

More information: "The fading American dream: Trends in absolute income mobility since 1940," , Science (2017). DOI: 10.1126/science.aal4617

© 2017 AFP

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