Marriage has declined since 1960, with the drop being bigger for non-college educated
individuals versus college educated ones. Divorce has increased, more so for the noncollege
educated. Additionally, positive assortative mating has risen. Income inequality
among households has also widened. A unified model of marriage, divorce, educational
attainment and married female labor-force participation is developed and estimated to fit the
postwar U.S. data. Two underlying driving forces are considered: technological progress in
the household sector and shifts in the wage structure. The analysis emphasizes the joint role
that educational attainment, married female labor-force participation, and assortative mating
play in determining income inequality.