This paper looks at competition in the Telecommunications industry with non-linear tariffs and network based price discrimination. Allowing for asymmetric networks and non-cooperatively chosen access prices simultaneously allows to explicitly derive non-reciprocal equilibrium access price...

We investigate the equilibrium market sturcture in virtual platform duopoly (auctions or other market forms) that are prevalent in internet settings. We take full account of the complexity of network effects in such markets and determine optimal pricing strategies. We invstigate the welfare...

This paper investigates the alleged predatory behaviour in the UK quality newspaper industry in the 1990s using a horizontal differentiation model and industry data.

This paper provides a limit result for the provision of a public good in a mechanism design framework as the number of agents gets large. What distinguishes the public good investigated in this analysis is its direct provision technology which is commonplace in modern information technologies.

This paper investigates the effect of spillovers in a model of endogenous technical change resulting from learning or network effects on the existence of a lower bound to market concentration.