Market definition, and, in particular, being able to identify who is in which product market, lies at the heart of competition law. The identification of demand elasticities necessary to conduct a formal definition of product market can be time consuming and often there is insufficient data to...

This paper analyses the regulatory attitudes to asset valuation in the 20th century. It focuses in particular on the U.S. experience from Smith v Ames 169 U.S. 466 (1898) to Federal Power Commission v Hope Natural Gas 320 U.S. 591 (1944) and on the experience in the U.K. in last two decades of...

This study presents the first comprehensive compilation of the number of people around the world who own shares directly and indirectly. We document that at least 310 million people in 59 countries (24 developed and 35 emerging market nations) own stock directly [Table 1]. Nearly 173 million of...

Privatizations are commonly associated with underpricing and undervaluation. Underpricing has received significant attention in the literature, but there is no equivalent literature that explains undervaluation. This paper provides a theoretical model of why regulated privatized assets are prone...

Privatised utilities are typically characterised by both undervaluation and underpricing. When faced with this problem, regulators have tended to employ a market-value approach to determine the regulatory asset base. This paper analyses this approach and shows that it magnifies the impact of any...

The paper outlines various measures of profitability and considers what role they can play in competition law. We argue that profitability measures can provide a good answer to the wrong question and a much less good answer to the question we really want to answer. Using appropriate definitions...

Public-private partnerships (PPPs) are long-term partnerships between the public and private sectors that usually involve the private sector undertaking investment projects that traditionally have been executed (or at least financed) and owned by the public sector. This paper considers...