SEO Aviation Economics carries out independent air transport research for governments, airlines and airports all over the world. SEO applies a unique set of economic tools and models to support the decision-making process of its clients. SEO invests in scientific research in order to continuously offer state-of-the art solutions. SEO Aviation Economics is part of SEO Economic Research. www.seoaviationeconomics.nl

ACI EUROPE is the European region of Airports Council International, the only worldwide professional association of airport operators. ACI EUROPE represents over 450 airports in 44 European countries. In 2012, member airports handled 90% of commercial air traffic in Europe, welcoming over 1.6 billion passengers, 16.7 million tonnes of freight and more than 16 million aircraft movements. www.aci-europe.org