Health and retirement effects in a collective consumption model of older households

Using data on elderly individuals and couples, we estimate a collective model of household consumption of a variety of goods, showing how resources are shared between husband and wife, and how this allocation is affected by retirement and health status. We identify the extent to which shared consumption of some goods by elderly married couples reduces their costs of living relative to living alone. We also identify the fraction of household resources consumed by wives versus husbands, taking this jointness of some consumption into account. The results are relevant for household bargaining models and for a variety of welfare calculations.