We extend Armstrong's (1996) result on exclusion in multi-dimensional screening models in two key ways, providing support for the view that this result is quite generic and applicable to many different markets. First, we relax the strong technical assumptions he imposed on preferences and...

The paper developes the model of optimal monopoly pricing under the viscous demand and customers turnover. The main findings are that the monopoly prices high during a fad, fads, however, are short lived