In this case all of the cracks and crevices are sealed. Then a hole is put in the slab to install the small fan and create sub-slab suction. The average Radon mitigation cost in Portland, Oregon, or Vancouver, Washington is between $800 to $2,500 with an average of $1,200.
A central feature of monopolistic competition is that products are differentiated. There are four main types of differentiation: Physical product differentiation, where firms use size, design, colour, shape, performance, and features to make their products different. For example, consumer electronics can easily be physically differentiated.
As inthe case of monopoly, the demand curve confronting a monopolistically-competitive ï¬rm is downward sloping. Thus, monopolistic competitionresults in lower output levels and higher prices when compared with perfectcompetition. Moreover, monopolistically competitive ï¬rms do not produceat minimum per unit cost.