Parents want their children to prosper. However, there’s an increasing sense that young
Americans today are not as financially well-off as previous generations were in
the same stage of life. Whether Americans
are continuing to progress from generation to generation has become the subject
of a growing literature in economics and other social sciences.
Research by Chetty (2014, 2017) found that
intergenerational progress had largely stopped, that inflation-adjusted
earnings of the typical (median) young American is no higher than that of his
or her parents at the same age. This
conclusion has been challenged by Twenge (2023)
and others who argue that young people today are materially better off than
their parents.
The most recent high-quality study to take a crack at this
question is Kevin Corinth (AEI) and Jeff Larrimore’s (Federal Reserve Board) 2024
paper. Their study draws on data
from the Current Population Survey to measure the income of couples and
households over the sixty-year period from 1964 to 2023. The focus is on adults in their prime earning
years (ages 36 to 40).
Economies and societies are dynamic. Studies of economic and social change over
time always entail difficulties as researchers try to identify the factors
driving observed changes: labor force participation, education, social policy,
etc. The authors don’t try to offer a
definitive explanation of the factors driving changes in income between generations. Rather, they present several sensitivity
tests which invite readers to be introspective and to sort it out on their
own. This contributes to the enjoyment
of the paper.
Corinth and Larrimore’s results are in a middle ground
between Chetty and Twenge. Corinth and
Lattimore find that the rate of income growth between generations has slowed
down but, unlike Chetty, progress has not stopped entirely. Every generation is doing better than the
preceding one. However, the largest
gains have accrued to those at the top of the income distribution and the
highly educated. This is consistent with
previous work that documents the growth of income inequality in American
society.
Millennials have often been characterized as an unlucky
generation having experienced two deep economic downturns in early adulthood. However, Corinth and Larrimore find that Gen
X is the unluckiest generation. Gen X median
income growth is the lowest of any generation, less than 10 percent in terms of
market income. By contrast, Millennial income
growth is several percentage points higher though still in the low teens. Figure 2 from their paper illustrates. Note that the difference in earnings at each
age is growing smaller with each succeeding generation
The authors briefly touch on the economic condition of Gen
Zers in their study. Gen Z is too young for
their focal age range (36-40). The
oldest Gen Z in 2023 was 27 years of age.
However, their study shows the rise in dependency on parental support in
each succeeding generation (as measured by the proportion of members dependent
on parents for 50 percent or more of their income). The authors find that parental support is the
only reason that younger Millennials (30 and below) had higher incomes than Gen
Xers. That is, market incomes for those 30
and under have been stagnant which contributes to the perception that
intergenerational progress has stalled. In
this regard, their findings are similar to Chetty’s.