There has been a long-standing debate on the global importance of the African external slave trades. While many scholars believe these to have been detrimental to African development, they were clearly a determining factor in the development of the Americas. What role they played for the European colonial powers is, however, hotly debated. This article contributes to the debate by estimating value added in the Triangular Trade and the American plantation complex. The article empirically studies the case of British connections to the African slave trade and the American plantation complex during the eighteenth century, since these have been the focus of much previous scholarly debate. The estimates suggest that these trades grew substantially over the period, reaching a magnitude equivalent to about 11% of the British economy by the early nineteenth century.

Land was an unambiguous constraint for growth in the pre-industrial period. In Britain it was overcome partly through the transition from traditional land-based goods to coal (vertical expansion) and partly through accessing overseas land, primarily from colonies (horizontal expansion). Kenneth Pomeranz suggested that horizontal expansion may have outweighed vertical expansion in the first decades of the nineteenth century. Taking a more complete approach to trade, we find that Britain was a net exporter of land embodied in traded commodities, apart from in the early nineteenth century, when potash (rather than cotton or timber) constituted the major land-demanding import from North America. The vertical expansion was generally larger than the horizontal expansion. In other words, Britain was not simply appropriating flows of land and resources from abroad but simultaneously providing its trading partners with even more land-expanding resources.

This article surveys the global acquaintances of Edwin Robert Anderson Seligman, a world-renowned authority on progressive public finance and professor of political economy at Columbia University between 1885 and 1933. Through his published writings, networks, and internationalist efforts, Seligman extended an emerging theory of progressive taxation to an international arena. This empowered his students, especially his Asian students, to build an analysis of the limitations of imperial political accountability and suggest bold financial reform. These links are uncovered for the first time and reveal Seligman’s place in the intellectual and political history of tax reform in American and European formal and informal empires. Consequently, the article also sheds new light on the history of what the legal historian Ajay Mehrotra has called the ‘early Columbia school of taxation and economic development’.

This article explains the rise of palm oil as a global commodity during the twentieth century as the result of cooperation and competition between two different clusters in former colonial territories. The connection between these two locations was mediated by Western companies, colonial officials, scientists, and businessmen. Eventually, the Southeast Asian cluster, organized on estate lines inherited from rubber, outcompeted the old one in Africa, mostly based on the farming of semi-wild trees. The article investigates the activities of scientists and businessmen exchanging information, knowledge, and practice between Africa and Asia for almost a century. It shows that cooperation among communities of practice helped to advance palm oil knowledge, but also created increased rivalry between the two locations. Thanks to the mobility of experts, and to knowledge exchange in colonial and early postcolonial times, multinationals were able to replicate clusters across locations with similar climate, taking advantage of a business environment more conducive to foreign investment.

This article analyses three fisheries crises in the post-war world – the Far East Asian Kamchatka salmon in the late 1950s, the north Atlantic Atlanto-Scandian herring of the late 1960s, and the Peruvian anchoveta of the early 1970s – to understand how each instance came to be understood as a ‘collapse’ in widely differing contexts and institutional settings, and how these crises led to changes in practices of natural resource administration and in politico-economic structures of the fishing industry. Fishery collapses were broadly understood as state failures and, in response, individual states increasingly claimed sovereignty over fish stocks and the responsibility to administer their exploitation. Collapses thus became events critical in the remaking of management regimes. Furthermore, the concept of a fisheries collapse was reconfigured in the 1970s into a global issue, representing the possible future threat of depletion of the oceans on a planetary scale.

Modern Spain has remained largely absent from the debates and narratives of global history. In sharp contrast to the early modern period, the case of Spain in the nineteenth century has been overwhelmingly studied from regional and national perspectives. Fortunately, valuable efforts to integrate this country into wider frames of analysis have emerged in the last decade. Building on these writings, this article will argue that connections and entanglements represent two valuable perspectives, which allow the insertion of the Spanish experience into contemporary narratives of global history. The article has two aims. First, it seeks to ‘decentre’ modern Spain, by moving beyond its territorial borders within the Iberian Peninsula, and by examining its global dimensions, through connections with territories, colonies, and nations on several continents. Second, it aims to reveal valuable insights for current debates on global history, which arise from a focus on a country that is usually considered to have been both marginal and peripheral.

The nationalist Welsh colony in Patagonia, Y Wladfa, offers a peripheral vantage point from which to reconsider core assumptions about settler colonialism and the British World. Taking a fresh approach to settler colonial studies, this article both pays close attention to settler motives before embarkation and also analyses the case from a global perspective. It foregrounds the role of unequal power relations in Britain, the British World, and the global arena in shaping social relations at home and in the colony, as well as locating Y Wladfa within a constellation of Welsh sites and influences around the world. Analysis reveals the Welsh to occupy a complex position within such global hierarchies, and to be colonizing Patagonia from a colonized position. As such, this case at the margins of settler power reveals important ambiguities, tensions, and affinities that challenge assumptions in settler colonial theory, and open spaces that might enrich and deepen analysis of this fundamentally global relationship of power.

In the late 1940s and early 1950s, as the US launched the Point Four initiative of overseas technical assistance programmes, a number of American officials, academics, and analysts saw valuable global lessons in the US Bureau of Indian Affairs’ development interventions among Native Americans. These interests culminated in a suite of professional training experiments, involving trainees from around the world, which emphasized cross-cultural development methods and used certain south-western Native American communities as field ‘laboratories’. A foundational seminar programme, coordinated by Cornell University social scientists, inspired additional training initiatives, tied to Point Four projects abroad, which brought foreign government officers from South Asia and the Middle East for similar training in New Mexico and Arizona. These training experiments not only placed Native American situations at the centre of significant transnational conversations about development, but also reinforced and widely circulated particular ideas regarding ‘underdevelopment’, ‘experts” prerogatives, and the politics of development relations.