Competition law increasingly needs to deal with contribution claims. Claims for antitrust damages are selectively brought forward against companies with vast financial assets or established in claimant-friendly jurisdictions. There is thus an emerging need for allocating liability internally among antitrust infringers. However, the ability to claim contribution in competition law cannot be taken for granted. In Texas Industries, the US Supreme Court was clear that such claims are not currently available in US antitrust law. The aim of the book is to explain how the issue of contribution is resolved in EU competition law.