Glossary of competition terms

This Glossary is based on definitions from DG COMP’s Glossary of terms used in EU competition policy (© European Union, 2002) and the OECD’s Glossary of industrial organisation economics and competition law (© OECD, 1993). Each term is enriched with references of national case laws from the e-Competitions Bulletin and Concurrences Review.

Joint control

Joint control exists where two or more undertakings or persons have the possibility of exercising decisive influence over another undertaking. Decisive influence in this sense normally means the power to block actions which determine the strategic commercial behaviour of an undertaking. Joint control can be acquired legally or de facto.

See further: Commission Notices on the concept of full-function joint ventures and on the concept of concentration (OJ C 66, 2.3.1998, p. 1 and 5).

© European Commission

Glossary