This paper endogeneizes the level of market coverage in a vertically differentiated market where firms decide first their qualities and next their prices. We extend the few endogeneization results to a more realistic setup, with quality dependent unit production costs. We show that, depending on...

We study the impact of piracy on the quality choices of a monopolist. In the absence of piracy, the monopolist has no incentive to differentiate its products. With piracy the monopolist might instead produce more than one quality, so that differentiation arises as the optimal strategy. This is...

Do larger markets offer better products? The question has implications both for theories of cities and for theories of market organization. We document that in the restaurant industry, where quality is produced largely with variable costs, the range of qualities on offer increases in market...

This paper models the interaction of copies and originals (e.g. MP3s and CDs, generally called flavors) in a dynamic, horizontally (stylistic variety) and vertically (distribution technology) differentiated market. The Johnson (1985) household copying model is at the root of this model. Quality...

Why are higher quality niches seen as intrinisically more profitable in business circles? Why do high quality products sometimes have a low real price, while it is unusual to see low quality products with high real prices? Can markets have quality differentiation as well as quality bunching? How...

Why are higher quality niches seen as intrinsically more profitable in business circles? Why do high quality products sometimes have a low real price, while it is unusual to see low quality products with high real prices? Can markets have quality differentiation as well as quality bunching? In...