The anthology addresses selected economic, legal, and behavioral science questions under the overarching theme of 'Research Approaches to Ensuring Future Viability' that are related to small and medium-sized enterprises (SMEs). It presents research findings from early-career researchers at the Faculty of Business Administration at Leuphana University Lüneburg, whose research activities have long been focused on SMEs. The thirteen contributions in this book are organized into three thematic areas. The first area includes contributions that address questions related to the optimization of organizational structures in and of SMEs, both at the individual and macroeconomic levels. The second area deals with selected topics related to the sustainable securing of the capital base of SMEs. The book is completed by contributions addressing challenges that companies face from their surrounding environment and society, broadly dealing with crises. Together, all contributions aim to demonstrate and establish a connection between theoretical insights and practical relevance.