Machine generated contents note: Introduction; Part I. Models of Household Behavior: 1. Facts; 2. The gains from marriage; 3. Preferences and decision making; 4. The collective model: a formal analysis; 5. Empirical issues for the collective model; 6. Uncertainty and dynamics in the collective model; Part II. Equilibrium Models of the Marriage Market: 7. Matching on the marriage market: theory; 8. Sharing the gains from marriage; 9. Investment in schooling and the marriage market; 10. An equilibrium model of marriage, fertility, and divorce; 11. Children and family structure.