Blacks' Diminished Returns of Parental Education on Household Income: A Study of College Students in the US.

Background: Parental education is a key determinant of household income, but its benefits are not uniformly distributed across racial groups. According to the Minorities' Diminished Returns (MDRs) theory, the socioeconomic benefits of resources such as parental education are systematically lower for minority families, particularly Blacks who have been subjected to slavery, segregation, racism, and discrimination. Objective: This study aims to investigate the diminished returns of parental education on household income among Black college students in the US. Methods: Using data from the Higher Education Research Institute (HERI) Freshman Student Survey, we analyzed the associations between race, parental education, and household income. The sample included 2,235,733 students, comprising 2,191,543 White and 441,90 Black freshman college students. We conducted regression analyses to examine the association between parental education and household income, adjusting for relevant covariates. Results: Our findings indicated that higher parental education is associated with higher household income in the pooled sample. We also found a positive association between parental education and household income for both Black and White college students. However, the magnitude of this positive association was significantly smaller for Black students compared to White students, demonstrating diminished returns of parental education on household income for Black families. Discussion: The results support the theory of Minorities' Diminished Returns, highlighting the need for policies that address the systemic barriers contributing to sustained economic inequality. These barriers go beyond parental education, resulting in income differences between similarly educated White and Black families.