We provide a simple necessary and sufficient condition for when a multiproduct demand system can be generated from a discrete choice model with unit demands.

This paper examines the implications of "prominence" in search markets.  We model prominence by supposing that the prominent firm will be sampled first by all consumers.  If there are no systematic quality differences among firms, we find that the prominent firm will charge a lower price than...

We examine the impact of multiproduct nonlinear pricing on profit, consumer surplus and welfare in a duopoly. When consumers buy all their products from one firm (the one-stop shopping model), nonlinear pricing leads to higher profit and welfare, but often lower consumer surplus, than linear...

This paper examines the implications of “prominence” in search markets. We modelprominence by supposing that the prominent firm will be sampled first by all consumers.If there are no systematic quality differences among firms, we find that the prominentfirm will charge a lower price than its...