ANA Aeroportos de Portugal is the company responsible for managing airports in Portugal, including Portugal's largest airport, Lisbon Airport. The initialism "ANA" stands for Aeroportos e Navegação Aérea, Portuguese for "Airports and Air Navigation". History At the end of the 1980s, a major expansion in both the economy and air traffic was witnessed at the global and national level. For ANA, it was a period of investment in basic infrastructures, with the renewal of the Air Traffic Control systems and the Lisbon, Porto and Faro airports. Airport activities also grew: free shops, rent-a-car offices, parking. During this period the company's head office was built, in addition to buildings for the Airports' partners: forwarding agents, concessionaires and airlines. It was also a period when the Airports joined several international bodies, such as Eurocontrol, ICAA (International Civil Airports Association) and AOCI (Airport Operators Council International). The 1990s began with the Gulf crisis, which affected both aviation and the world economy. Other sources of instability were the war in Yugoslavia, German reunification and the slowdown in the US economy. These circumstances meant the end of a cycle of self-financing investments for ANA, and the company was forced to seek credit to support its development. Despite these difficulties, infrastructures continued to be strengthened, especially the Lisbon, Faro and Ponta Delgada airports and, in air navigation, the Atlântico project. In 1991 the liberalization of the European market was extended, with the end of monopolies and tariff controls. These measures brought with them great challenges. In order to confront these, in 1992 ANA carried out a thorough analysis, the keywords of which – Client and Effectiveness – guided the company's growth in the following years. The result of this analysis was a new direction for the company towards competitiveness. Decentralized management was adopted, which transferred decision-making capacity to the different business areas: Airports, Air Traffic Control Centres, the Commercial Activities Area and the Aeronautical Infrastructures Studies and Projects Area. The structure of the organization became more simplified and effective. A new tariff policy was set up, capable of attracting large clients with a greater cost/benefit relationship. The commercial profitability of the airports was expanded with the awarding of various concessions. During this period ANA demonstrated its capacity to provide services to third parties, within Portugal and beyond. The Funchal and Macau airports were the first to entrust us with their management. Investment in infrastructures continued, with