Lareau's research examines how small moments and contingencies in childhood can have large consequences for life outcomes. She studied 88 families from ages 10 to 30, finding that structural forces like policies on housing, education and the labor market intersected with families' economic resources and cultural knowledge to shape diverging paths. For example, Harold and Karl both faced challenges growing up poor, but their different networks of support influenced whether they could achieve goals like owning a business. Lareau's work underscores how social inequality persists through key moments that reproduce advantage or disadvantage across generations.