Montana Gov. Steve Bullock -- a late entry into the Democratic race for the 2020 presidential nomination -- decried the withering of the American dream in a recent interview with CNN’s Jake Tapper.
"You look at today, only half the 30-year-olds are doing better than their parents were at age 30. When I was being raised, it was 90%," Bullock said in the May 19 interview.
Is that correct? Basically, yes.
The talking point is supported by a study on income published in 2016 and co-authored by six economists affiliated with the University of California-Berkeley, Harvard University, and Stanford University.
The paper calculated the fraction of children born between 1940 and 1984 who were earning more than their parents. The authors said their assessment was more complete than previous research because they were working with more detailed data that linked parents to their children.
Overall, the study found that upward mobility began at 90% for children born in 1940 but fell to about 50% for children born in the 1980s.
Here’s a chart produced by the Brookings Institution showing the relevant data from the study:
At first glance, we thought Bullock had miscalculated.
Bullock was born on April 11, 1966, so the period when he was "being raised" would have been roughly between 1966 and 1980. During that period, according to the graph, the percentages out-earning their parents ranged between 57% and 61% -- not 90%, as Bullock had said.
But when we checked in with a co-author, Maximilian Hell of Stanford, he said that Bullock was actually on target.
The data in the paper, he said, referred to the point at which the children were 30 years old. This means that the 30-year-olds when Bullock was four years old in 1970 were themselves born in 1940, and 90% of that birth group out-earned their parents.
That did change a bit over time. By the time Bullock was 14, the 30-year olds were born in 1950, and by then, the percentage had fallen to 79%. By the time Bullock was 18, the percentage had fallen to 68%.
In other words, Bullock would have been right about the people who were 30 when he was born, but the 90% figure he offered would be too high to apply to those who were 30 year olds when he was a teenager (though even that percentage is still significantly higher than today’s 50%).
We’ll note that, according to the authors, improving today’s 50% figure would require more than just accelerated economic growth -- it would also require a lessening of income inequality.
Bullock said, "You look at today, only half the 30-year-olds are doing better than their parents were at age 30. When I was being raised, it was 90%."
The people who were 30 when Bullock was age 4 did indeed have a 90% likelihood of out-earning their parents. However, that number dropped by the time he was 18 to 68%. Still, even that smaller percentage was higher than today’s 50% figure.
In other words, economic mobility has decreased significantly since Bullock, 53, was a boy.
We rate the statement Mostly True.