National security considerations in competition enforcement
WP3 on Co-operation and Enforcement
23 June 2026
Beatriz Marques
Yuichi Tominaga
OECD Competition Division
The evolving scope of national security
Competition supports national security
The boundary test
The role of competition authorities
Where national security enters competition analysis
Assessing actual competitive constraints
Merger control
Co-ordinated conduct
Unilateral conduct
Remedy design
Tools beyond enforcement
Key takeaways
Access the OECD note and all documents from this roundtable at oe.cd/nscce
