This paper examines demand systems where the demand for a good depends on other prices only through a common price aggregator (a scalar function of all prices). We refer to this property as ``generalized separability'' and provide the functional forms of demand that this property implies when...

The mixed-demand model allows for very flexible specification of what should be considered endogenous and exogenous in demand system estimation. This paper introduces a revealed preference framework to analyze the mixed-demand model. The proposed methods can be used to test whether observed data...

I study how individual preferences and bargaining power within older couples affects the impact of cash transfers on food demand. Using longitudinal Homescan data, I find that wives have stronger preferences for food than husbands, and that household demand patterns for food are affected by...