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 EU and national case laws from the e-Competitions Bulletin and Concurrences Review.

Spill-over effects

Side effects of an agreement or a merger between two or several firms which affect competition between them in another relevant market than the one covered by the agreement or the merger in question. Spill-over effects are referred to in Article 2(4) of the Merger Regulation, which concerns the creation of a joint venture that has as its object or effect the coordination of the competitive behaviour of undertakings that remain independent. In that case, the Commission shall appraise this coordination taking also into account whether two or more parent companies retain to a significant extent activities in a market which is downstream or upstream from that of the joint venture or in a neighbouring market closely related to this market. © European Commission