“Race trumps class, at least when it comes to incarceration,” said Darrick Hamilton of the New School, one of the researchers who produced the study.
He and his colleagues, Khaing Zaw and William Darity of Duke University, examined data from the National Longitudinal Survey of Youth, a national study that began in 1979 and followed a group of young people into adulthood and middle age. The participants were asked about their assets and debts, and interviewers also noted their type of residence, including whether they were in a jail or prison.
The researchers grouped participants in the survey by their race and their household wealth as of 1985 and then looked back through the data to see how many people in each group ultimately went to prison. Participants who were briefly locked up between interviews might not be included in their calculations of the share who were eventually incarcerated.