Joanna has a keen appreciation of the importance of costing issues and the price cost relationship in markets where there is market dominance and very considerable experience in both the theory and the practical application of regulatory tools, such as functional separation, and economic competition law issues such as pricing. Market definition is critical to competition and regulatory issues and is also familiar territory to Joanna.
As a recognised expert in the concept and application of accounting separation as a regulatory mechanism for remedying market power, she was heavily involved in its development in the UK and, later, in Europe.
While her expertise was developed in the telecommunication sector this expertise is equally applicable in other sectors, wherever pricing might be an issue or access pricing or non-discrimination issues arise.