We present a model of imperfect price competition where not all firms can sell to all consumers. A network structure models the local interaction of firms and consumers. We find that aggregate surplus is maximized with a fully connected network, which corresponds to perfect competition, and...

Many firms and organizations compete for customers while at the same time receiving substantial funding from outside sources, such as government subsidies. In this paper, we study the effects of two commonly observed, alternative subsidy systems on the behavior of price-competing firms....

This paper builds a theory of endogenous role distribution (leader, follower, and Nash player) and of endogenous choice for the type of competition strategy (price and quantity) in a product differentiated duopoly model. We examine an extended game by adding a pre-play stage in which duopoly...

We present a model of imperfect price competition where not all firms can sell to all consumers. A network structure models the local interaction of firms and consumers. We find that aggregate surplus is maximized with a fully connected network, which corresponds to perfect competition, and...

When firms use advertising to differentiate their products and increase consumer appreciation of their products, the strategy, i.e., price or quantity, depends on the degree of product differentiation and the magnitude of advertising costs. If advertising costs in Bertrand competition are very...

We show that there is a unique correlated equilibrium, identical to the unique Nash equilibrium, in the classic Bertrand oligopoly model with homogenous goods.This provides a theoretical underpinning for the so-called "Bertrand paradox" and also generalizes earlier results on mixed-strategy Nash...

We show that there is a unique correlated equilibrium, identical to the unique Nash equilibrium, in the classic Bertrand oligopoly model with homogenous goods. This provides a theoretical underpinning for the so-called "Bertrand paradox" and also generalizes earlier results on mixed-strategy...

The answer is no. Although naive intuition may suggest the opposite, uncertainty about costs in the homogeneous-good Bertrand model intensifies competition: it lowers price and raises total surplus (but also makes profits go up). For some economic environments, this is implied by Hansen's (RAND,...

We consider a simple two period model where consumers have different switching costs. Before the market opens, there was an incumbent who sold to all consumers. We identify the equilibrium both with Stackelberg and Bertrand competition and show how the presence of low switching cost consumers...

This paper analyses the incentives to adopt cost-reducing technology by firms in a horizontally differentiated industry. In our model there are several suppliers of a new technology. The extent of the cost reduction depends on the quality of the new technology. A firm has to buy the technology...