We study alternative market power mitigation measures in a homogeneous goods industry where productive assets have asymmetric costs. We characterise the asset divestment by a dominant firm which achieves the greatest reduction in prices (taking the size of the divestment as given). The optimal...

We study the impact of electricity divestments in a stylised model where a dominant producer faces a competitive fringe with the same cost structure and is forced to sell some of its capacity. For a given demand level, the divestment which achieves the greatest reduction in prices can be several...

This article reviews a recent abuse of dominance decision against the incumbent domestic airline in South Africa (SAA). This case placed significant emphasis on the economic impact of the abusive conduct, and it represents a clear example of the adoption of an effects-based approach to assess...