The operating areas of each terrestrial broadcasting station in Japan are geographically divided by a licensing system and form oligopolies in each of their respective markets. These institutional constraints define the market structure, and as a result, affect the business performance of the...

This paper analyses oligopolies using the Cournot/Stackelberg framework, but allowing some firms to be pursueing aims other than profit maximisation. The existence of even a single output maximising firm can have dramatic effects on outputs, prices and welfare, even if such a firms faces...

We consider a model with two backbones and a finite number of Internet Service Providers (ISPs) connected to the backbones. ISPs decide on private peering agreements, comparing the benefits of private peering to costs. Intra-backbone peering refers to peering between ISPs connected to the same...

We examine the effect of an oligopolistic upstream electronic market on upstream and downstream prices. The analysis highlights the two sources of competition that a firm that source from an electronic market (e- market firm) face: competition with less efficient firms that source traditionally...

A simple Ising spin model which can describe the mechanism of advertising in a duopoly market is proposed. In contrast to other agent- based models, the influence does not flow inward from the surrounding neighbors to the center site, but spreads outward from the center to the neighbors. The...

In general equilibrium models with oligopolistic firms, equilibrium outcomes may depend on the choice of numeraire. When firms have the power to influence prices strategically, different price normalisations entail objective profit functions which are generally not monotone transformations of...

We study dynamic price adjustment under imperfect competition when consumers have non-time-separable preferences. In our model an intertemporal link arises in the consumers' maximization problems because current consumption decisions affect the utility of future consumption. Thus future demand...