We introduce the inverse product differentiation logit (IPDL) model, a micro-founded inverse
market share model for differentiated products that captures market segmentation according …

Many empirical studies require estimating how consumers substitute across differentiated
products. Examples can be found in a wide range of fields of economics, including …

Abstract We introduce a Generalized Nested Logit model of demand for bundles that can be
estimated sequentially, eliminating the challenge of dimensionality due to large choice sets …

To accommodate richer substitution patterns, researchers have specified, without much
explanation, discrete choice models in which prices enter with product-dependent …

Applied researchers commonly use discrete choice utility. In this paper, I use convex
analysis, properties of homothetic functions, and ordinary first-order differential equations to …

Measuring substitution patterns across differentiated products is at the heart of many
empirical studies. Most of the approaches used in applied work, including the leading …

We develop a class of demand models for differentiated products based on the concept of
entropy. The new models facilitate the BLP method (Berry et al., 1995) by avoiding …

The findings are consistent with some cases of my theoretical model. The implications of this
study are that modeling distribution tier and uniform pricing by retailers may be important for …

We develop a class of demand models for differentiated products. The new models facilitate
the BLP method (Berry et al., 1995) while numerical inversion of the demand system is not …