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The International League of Competition Law (LIDC) is a long-standing international association, which was created in 1930. The LIDC focuses on the study of competition law, intellectual property law and unfair competition law. It is a unique platform for exchanging and developing ideas and knowledge on the intersection of competition, intellectual property and unfair competition laws, both at national level and in an international setting.

The LIDC’s is constituted by National Groups that agree with the LIDC’s purposes and participate in its activities. Individual members from countries where no national group is currently constituted can also become an LIDC member.


LIDC is proud to announce that Licks Attorneys has become a Strategic Partner in 2026.

Licks Attorneys is a leading Brazilian law firm in litigation and intellectual property, renowned for its expertise in complex disputes and multidisciplinary strategies in high-profile cases involving disruptive technologies in sectors like telecom, pharmaceuticals, and chemistry. With a dedicated team of over 350 professionals, including more than 180 skilled attorneys and patent specialists with deep scientific and technical backgrounds, we have successfully managed over 3,000 cases since our inception. We represent global companies in landmark patent cases and have played a central role in recent litigation involving standard essential patents adjudication and licensing, biotech and agrochemical defense and regulatory delays. Our proven track record, strategic innovation and commitment to excellence make us the top choice for legal services in Brazil.

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What's next?

Upcoming activities
Wednesday 02 December
Digital Sovereignty and Competition: the Future of the AI Stack
Friday 04 June
LIDC NexGen Weekend 2027, Vienna, Austria
Thursday 07 October
LIDC CONGRESS 2027 in Berlin, Germany
Next congress
LIDC Congress 2027 - Berlin, Germany, from 7 to 10th October 2027
We are pleased to inform you that the next LIDC Congress will be held in Berlin, Germany, from 7 to 10th October 2027. Preliminary topics for QA and QB, selected for the Berlin Congress 2027: Question A: Control of Pricing Practices Through Competition Law: Finding the Right Balance Question B: Use of Copyrighted Works, Trademarks, and Other Protected Content for the Training and Operation of Generative AI Systems: Intellectual Property Rights and Unfair Competition Concerns
LIDC Webinars serie
Digital Sovereignty and Competition: the Future of the AI Stack
The LIDC together with LIDC Nex Gen will be holding a webinar on Wednesday 2 December 2026 from 12.30 – 14.00 pm (CET) / 11.30-1.00 pm (UK) on : Digital Sovereignty and Competition: the Future of the AI Stack Digital sovereignty has emerged as one of the defining themes of 2026, with the EU’s Technology Sovereignty Package marking a significant shift in its digital policy framework. This webinar takes a timely comparative look at the approaches of the EU and its neighbour and close trading partner Türkiye, which has established a distinctive sovereignty model. Leading experts from both jurisdictions will…
Events organized by the national groups
LIDC NexGen Weekend 2026 – Registration Now Open
Following the success of last year’s NexGen event organised by the Hungarian section in Budapest, the International League of Competition Law (LIDC) is pleased to announce that registration is now open for the LIDC NexGen Weekend 2026, which will take place in Paris from 5 to 7 June 2026. This annual event brings together young professionals and early‑career members of the global LIDC community for three days of academic discussions, interactive sessions, and networking opportunities centred on current and emerging issues in competition law, intellectual property, and related fields. 👉 Registration link: https://my.weezevent.com/week-end-nex-gen National Groups are warmly encouraged to share…