Antitrust Litigation 2025

PORTUGAL Law and Practice Contributed by: José Luís da Cruz Vilaça and Mariana Tavares Antas da Cunha Ecija

Portugal

Spain

Lisbon

Contents 1. Introduction p.159 1.1 Current Framework for Private Antitrust Litigation p.159 1.2 Recent Developments p.159 2. Private Antitrust Claims: Basis and Procedure p.160 2.1 Statutory Basis p.160 2.2 Courts p.160 2.3 Impact of Competition Authorities p.161 2.4 Proof p.161 2.5 Pass-On Defence p.162 3. Limitation Periods and the Duration of Litigation p.162 3.1 Statute of Limitations p.162 3.2 Typical Length of Private Antitrust Litigation p.162 4. Class and Collective Actions p.162 4.1 Statutory Basis p.162 4.2 Opting In or Out p.163 4.3 Direct/Indirect Purchasers p.163 4.4 Class Certification p.163 5. Choice of Jurisdiction p.163 5.1 Rules on Jurisdiction and Applicable Law p.163 6. Disclosure/Discovery p.163 6.1 Disclosure/Discovery Procedure p.163 6.2 Legal Professional Privilege p.164

8. Damages p.165 8.1 Damages: Assessment, Passing On and Interest p.165 9. Liability and Contribution p.165 9.1 Joint and Several Liability p.165 9.2 Contribution p.165 10. Other Remedies p.166 10.1 Injunctions p.166 10.2 Alternative Dispute Resolution p.166 11. Funding and Costs p.166 11.1 Litigation Funding p.166 11.2 Costs p.167 12. Appeals p.167 12.1 Basis of Appeal p.167 13. Looking Forward p.168 13.1 Legislative Trends and Other Developments p.168

6.3 Leniency and Settlement Agreements p.164 7. Witness and Expert Opinions p.164 7.1 Witness Procedure p.164 7.2 Expert Witness Role and Procedure p.164

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