Generally, economists interested in network effects analyse these effects when the consumption externalitycreated by the demand for the good is produced inside the industry itself. But it can be conceived that network effects takeplace from one industry to another. This happens when the utility...

In this paper we model a situation competition between two editorswho are rivals in both the newspapers’ and advertising industries. To identifythe consequences of this competition, we analyse a two-period sequentialgame whose players are the editors each selling a differentiated...

We examine how media competition is affected when making endogenous advertising rates. To this end, we revisit some well-known contributions in which advertising rates and volumes are viewed as exogenous, so that the effects of advertising on diversity and industry concentration only depend on...

The author considers a model in which one firm in each of two countries produces a homogeneous good and sells it exclusively to a third country. Each firm simultaneously selects a supply function before a demand shock occurs. The model assumes that the home government can precommit to a subsidy...

We study a model with product differentiation by manufacturers and spatial differentiation by supermarkets where the customers visit only one shop and the supermarkets carry both goods. Under fixed fee pricing by the manufacturers the intensity of interbrand competition increases with the degree...

In the present paper, we analyze an original channel of interaction between politicians and lobbies i.e. the nuisance power of a lobby. Some lobbies are influencing public policies just because they are able to impact negatively the image of a politician. More particularly, we develop a setting...

The press industry depends in a crucial way on the possibility of financing an important fraction of its activities by advertising receipts. We show that this may induce the editors of the newspapers to moderate the political message they display to their readers, compared with the political...