This paper discusses a model where consumers simultaneously differ according to one unobservable (preference for quality) and one observable characteristic (location). In these circumstances nonlinear prices arise in equilibrium. The main question addressed in this work is whether firms should...

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...

This paper explores in detail a price game with two potential competitors who sell products with different qualities and where unit production costs are increasing with quality. Depending on the quality combinations, many types of price equilibria configurations may exist, besides the classical...

Previous literature has analyzed the quality-price decisions and the market structure that arises endogenously, in a setup where variable production costs depend on quality. This paper goes one step further by admitting the existence of "transportation" costs for consumers who buy from the firm...