The paper takes as its starting point the Irish telecom regulator ComReg's finding of joint dominance by two firms in the mobile phone market in Ireland. The paper argues that the regulator's decision was inconsistent with the facts in the case. However, it argues that the case raises wider...

This paper studies how transport infrastructure investments affect a bidding war for a firm between two asymmetric countries within a region in a context of imperfect competition, where transport infrastructure investments play the role of a global public good, leading to a reduction in the unit...