ABSTRACT
The market structure of oligopoly, similar to that of monopolistic competition, is situated
somewhere on the continuum between the models of perfect competition and monopoly.
Unlike the three previous market structures, each of which can be dealt with as a
single model, there are a plethora of models of oligopoly. A single thread running
through this group of models is that the industry is composed of a few sellers, a small
enough number that they are aware of each other. However, the way in which they
acknowledge or act upon their interdependence with each other differs from one model
to the other.