A simple duopoly model is used to show the advantage to a manufacturer of selling his
product through an independent retailer (vertical separation) rather than directly to …

This survey is organized as follows. I. Introduction. II. The main issues. III. Negishi's model.
IV. Objective demand in the Cournot‐Nash framework. V. Objective demand in the Bertrand …

Oligopoly theory is one of the most intensively studied areas of mathematical economics. On
the basis of the pioneering works of Cournot (1838), many researchers have developed and …

Lancasterian models of product differentiation typically assume a one-dimensional
characteristics space. We show that standard results on prices and locations no longer hold …

A dynamic Cournot duopoly game, characterized by firms with bounded rationality, is
represented by a discrete-time dynamical system of the plane. Conditions ensuring the local …

We demonstrate how to estimate a model of oligopoly pricing when products are multi-
dimensionally differentiated. We provide an empirical counterpart to recent theoretical work …

We consider a Cournot oligopoly game, where firms produce an homogenous good and the
demand and cost functions are nonlinear. These features make the classical best reply …

We propose an oligopoly game where quantity setting firms have incomplete information
about the demand function. At each time step they solve a profit maximization problem …

The design of distribution channels is an important marketing decision since a revision
implies costly reorganization. Hence, it makes sense to study strategic motives of alternative …

For regular oligopolies (both homogeneous and heterogeneous) the (local) Cournot-Nash
equilibria are the (non-degenerate) critical points of a Morse-Smale vector field, defined on …