Dr. Sami Ur Rahman holds a PhD in Management Sciences and currently serves as a Lecturer at Birmingham City University, United Kingdom. As a finance academic, Dr. Rahman’s research expertise spans a broad range of interdisciplinary areas, including Financial Markets Development, Financial Institutions Development, the Shadow Economy, Financial Inclusion, FinTech, Political Economy, Energy and Environmental Finance, Sustainability, Natural Resources-Financial Development, Financial Regulations, and Green Finance. Dr. Rahman has a strong interest in advanced quantitative and bibliometric methods, with a particular focus on bond market analysis and the role of financial systems in promoting sustainable development. Their scholarly contributions have been published in several high-quality peer-reviewed journals indexed in ABS, ABDC, SSCI, and with established impact factors. As a Guest Editor for Sustainability, Dr. Rahman is dedicated to advancing impactful, interdisciplinary research that addresses the complex intersections of finance, policy, and sustainability in both emerging and developed economies.