The importance of childhood investments to the trajectory of life is commonly accepted, but less is known about the size and sources of disparities in these investments. A recent study in Nature Communications sought to assess differences in childhood human capital investments across different racial and socioeconomic demographics.
To expand the scope of investments across multiple areas of children’s lives, the researchers combine data from ten nationally representative surveys from 2010 to 2023 and convert public spending, private expenditures, and family time into a common dollar scale. The ten domains include informal education, nutrition, housing, formal schooling, health care, exercise, clothing, childcare, transportation, and college prep. For example, time-based investments, such as informal education and transportation, are converted using hourly wages, while expenditure-based investments—food, clothing, housing, childcare, and college preparation—are measured through costs.
The researchers then evaluate trends across socioeconomic quartiles and racial groups and identify three key findings: (1) disparities between groups are substantial but smaller than estimates reported in previous research; (2) the gaps are largest before children enter formal schooling; and (3) those disparities vary by race, ethnicity, and income.
For finding one, the average investment per child from birth to age 18 (counting all public and private spending) is $502,152. Total investments are approximately $86,000 more for children in the top quartile of income compared to the bottom quartile, and between $55,000 and $75,000 more for White families compared to Black and Hispanic families. These racial and socioeconomic investment gaps, which range from 6 percent to 15 percent, are much smaller than found in previous studies.
Investment gaps are widest between birth and age five and converge as children enter formal education. Notably, the investment gap between the highest and lowest socioeconomic quartiles is cut from 24 percent to 12 percent as children transition from early childhood (birth through age four) to older childhood through twelfth grade. Researchers identify that publicly funded investments in K–12 teacher salaries are comparable across groups, which contributes to the investment convergence in tandem with increased support for groups with lower investments during early childhood once they enter K–12 schooling (e.g., tutoring and special education funding).
Finally, investment gaps present differently across various racial and income groups. Because housing is the largest contributor to investment disparities for Hispanic families, the Hispanic-White gap is larger for expenditure-based investments than for parent- and family-time investments. By contrast, because Black children on average receive less family time during meals, the Black-White gap is larger for parent- and family-time investments than for expenditure-based investments. The contributors to disparities across household income are similar to, but not identical to, those across racial groups, further reflecting variability in how disparities present.
Put together, the evidence paints a vivid picture of the investment disparities that exist among children. Through examining a more comprehensive set of investments, researchers more accurately identify which disparities are greatest among groups, and which investments increase or decrease disparities.
In all, this study offers a more comprehensive picture of childhood investments and their disparities. While the gaps are smaller than those found in previous research, they remain significant before children enter formal education. These findings could help policymakers target support more effectively and examine how early investment gaps shape students’ readiness for school.
SOURCE: David Blazar, Michel Boudreaux, Steven Klees, Jennifer King Rice, Marvin Titus, Jiehui Zhao, Disparities in childhood human capital investments in the United States (Nature Communications, 2026).
