People's economic activities in southern and central Africa have undergone major transformations in the last three decades, influenced by significant structural changes in the configurations of big capital and state-capital relations. The focus of this edited collection is on people's economic responses to restructuring in the three mining centres of South Africa, the Zambian Copperbelt and Haut-Katanga, DRC. There is a growing interest in comparing the central African Copperbelt, but, to our knowledge, there has not been any systematic comparison of these three interconnected mining systems. 1 By 'mining system' we mean a specific historical configuration that developed from the interactions, negotiations and conflicts between mining capital, colonial powers, colonised polities, migrant and local labour, and local communities. While capital was internationalised from early on, the forms of state-capital relations that emerged in the three locales shaped them into separate, albeit interconnected and open-ended, systems. Mining companies competed over labour, with African migrants and their families often moving across these areas, but also capital and international markets. Dynamics of competition and cooperation also occurred between the different colonial states. While these systems developed their own specificities, the original goal of conquest for extraction of raw materials destined to the metropolitan markets was common to all three configurations. These processes produced massive displacements and large-scale disruptions of existing economic activities (including mining), international trade, and migration routes. As a heuristic device, we selected articles that study people's economic activities in various geographic areas directly linked to the three mining systems. We included urban mining centres as well as rural labour-sending areas from within and outside the mining countries' national borders. In sectoral terms, we kept the focus as broad as possible, trying to provide some analysis of: how large-scale mining and its institutions have changed over time (Stewart and Nite, Macmillan, and Uzar, in this issue); how people residing in urban mining centres and formerly employed in large-scale mining moved to other economic activities (Rubbers, in this issue); how artisanal mining developed alongside the decline of largescale mining (Cuvelier, in this issue); and how rural sending areas fared with the drastic reduction of mining employment (Johnson, and van der Waal, in this issue). Most of the articles in this special issue are contemporary ethnographic case studies, rooted in an awareness of the political economy of the region and engaging to varying extents with the history of the three mining systems. Different scales are at work herefor example, while one article engages with the changes in the configurations of big capital and state-capital relations in South Africa (Macmillan, in this issue), another is a national case study of mining trade unions in times of privatisation in Zambia (Uzar, in this ...