This chapter explores the economy of the later Roman Empire, with special emphasis on resource management, economic structures and regional variations. It highlights how land, labour and capital functioned within a largely agrarian system, with agriculture serving as the primary economic driver and tax base. The chapter examines diverse sources, including archaeological surveys, historical texts, coinage and environmental data. It analyses the effects of political instability, regional differentiation and resource distribution on economic trends. Case studies from North Gaul, Iberia, Italy and the Eastern Mediterranean reveal that economic activity was influenced by both local conditions and imperial policies. The study also incorporates ecological data, such as pollen analysis and lead pollution levels, to assess economic fluctuations. A central argument is that the later Roman economy was not a uniform system but a collection of interconnected regional economies. While political fragmentation led to economic contractions in some areas, others adapted through local specialisation and changing trade networks. This study thus challenges the view of economic collapse, instead emphasising resilience and adaptation, and calling for an interdisciplinary approach to better understand the complexities of late Roman economic life and its long-term transformations.