Eleonora Santos is an economist and Researcher at the Centre of Applied Research in Management and Economics (CARME), University of Leiria and Oeste. She holds a PhD in Economics from the Faculty of Economics, University of Coimbra (2018). Her research focuses on the applied economics of sustainability, framed through special cases of territorial resilience. Key themes include water governance, sustainable tourism, circular economy, forest bioeconomy, foreign direct investment, firm productivity, and related policy challenges. She has delivered evidence-based insights to European and international debates on water reuse, nature-based solutions, and social sustainability in tourism and waste management. Recognised in the World’s Top 2% Scientists – Single-Year 2025 list (Stanford University & Elsevier), she ranks highly according to Top 1000 Scholar in specialised topics such as cruise tourism development, firm innovation and growth, wastewater treatment and reuse, and water-energy-food nexus studies. She is Director of the Tourism and Land Use Change Subgroup of the CRUSOE Network (29 universities across Portugal and Spain) and leads and contributes to projects including the EU-funded AWARE initiative on sustainable water reuse. An active expert evaluator for Horizon Europe, FWO, COST and other agencies, she bridges research, policy and practice to advance ecological transition and rural development. She has published extensively in journals including Sustainability