Choice environments in practice are often more complicated than the well studied case of choice between perfect substitutes. Consumers choosing from menus or configuring products face choice sets that consist of substitutes, complements and independent items, and the utility maximizing choice...

Distributions of preferences and other economic primitives are often key inputs in market-level counterfactual analyses. In empirical work, these distributions must be inferred from finite amounts of data where measures of statistical fit often favor simple — yet ad-hoc — parametric...