The assignment discusses various strategies that can be used by managers in a Travel and Tourism (TUI) company to minimize the negative impact of changes in macro-environmental factors on its business operations. The strategies include customer interface quality, satisfaction, and switching costs on e-loyalty, as well as social media in tourism, travel, and hospitality. The document also references several journal articles and books related to the topic, including 'Strategic Management in Tourism' by L. Moutinho and 'Marketing in Travel and Tourism' by T.C.V. Middleton and J.R. Clarke.