Sibling similarities and economic inequality in the US

I use a new methodological approach and larger US samples than previous studies and estimate that the sibling correlation across a range of economic outcomes is around 0.5. This suggests that half of economic inequality in the US can be attributed to family and community influences. A comparison with noneconomic outcomes suggests that individual choices rather than a simple mechanical relationship governs the intergenerational transmission of income. A decomposition of the sibling correlation suggests that the acquisition of human capital is an important channel through which family background affects future success but that noncognitive factors also play a role.