In 1977 the Japanese Antimonopoly Law introduced the report collecting system on parallel price increases, i.e., price leadership. The substantial aim of this system is to encourage self-restraint with regard to irrational parallel price increase. We investigate some features of price leadership...

This paper explores a monopolist's incentives to provides upgraded versions of its software. In particular, the authors examine how market power, commitment problems and price discrimination may lead a monopolistice supplier of a network good to introduce upgrades when social welfare would be...

In a model of horizontal product differentiation, we show that local monopolied may exist under free entry when capital is perfectly mobile. In contrast both with the situation of restricted entry and with the zero-profit approach to free entry outcomens of Salop 91979), the unit profit rate of...

We present a model of spatial competition where transport costs are dependent on the price the monopolist sets in the market. Several specifications of the transport costs are modeled. We find that, in contrast with a standard Hotelling model, the monoplist decides to cover all the market...

This paper shows that the adoption of flexible manufacturing techniques by firms leads to a tougher price regime. This need not benefit consumers since the tougher regime deters entry and facilitates segmented market structures.

This paper finds an optimal mechanism for selling an indivisible good to consumers who may be budget-constrained. Unlike the case where buyers are not budget constrained, a single posted price is not typically optimal. An optimal mechanism generally consists of a continuum of lotteries indexed...

We endogenise the objective of a monopoly firm in a general equilibrium context. Within this framework a distributional conflict occurs between shareholders, depending on their endowments. Following a political-economy approach and using voting theory, the production plan of the firm is...

This paper formulates a model of m-firm complementary monopoly under the assumption of linear demand, constant long-run marginal cost and constant propositions.

This paper analyses the situation of an incumbent monopoly who has both to signal that her costs are low in order to dissuade entry tomorrow, and that her product has a high quality in order to attract consumers in the current period. The incumbent can use both price and advertising as signals....

Two fields of thought evolved simultaneously, but scholars in one ignored the evolution of the other. The first was the theory of monopoly, whose broad nineteenth-century definition narrowed considerably during the twentieth century. Concepts contained in its original incarnation attained...