In recent years, market definition has come under attack as an
analytical tool of competition law. Scholars have increasingly
questioned its usefulness and feasibility. That criticism comes into
sharper relief in dynamic, innovation-driven markets, which do not
correspond to the static markets on which the concept of the relevant
market was modelled. This book explores that controversy from a
comparative legal perspective, taking into account both EU competition
and US antitrust law. It examines the manifold ways in which courts and
competition authorities in the EU and US have factored
innovation-related considerations into market delineation, covering:
innovative product markets, product differentiation, future markets,
issues going beyond market definition proper - such as innovation
competition, innovation markets and potential competition -,
intellectual property rights, innovative aftermarkets and multi-sided
platforms. This book finds that going forward, the role of market
definition in dynamic contexts needs to focus on its function of market
characterisation rather than on the assessment of market power.