David Parker is a Director in the Competition Practice at Frontier Economics. He is engaged on matters in many national and supra-national jurisdictions, across the whole range of competition investigations. His expertise covers an extremely wide range of sectors, including financial services, retailing, energy, transport, telecoms, media, online platforms and retailers, agricultural products, FMCG products, chemicals, petrochemicals, health services, pharmaceuticals, and postal services. David acts as an expert witness in litigation and arbitration cases, in relation to standalone and follow-on damages cases arising from breaches of competition law, and in a wide range of other contentious matters where economic evidence is relevant. He has given expert evidence in several courts and tribunals, including the England and Wales High Court, the Competition Appeal Tribunal, the Northern Ireland High Court, the Ireland High Court, the First Tier Tax Tribunal, the London Court of International Arbitration and the Milan Court of Appeal.