This essay considers how insights into the dynamic, interconnected, and high-stakes nature of frontier markets resonate with current disruptions in global commodity networks. In the book Unsettled Frontiers (Cornell University Press, 2022), I argue that the tangled social and material networks that constitute frontier markets are prone to rupture—a characteristic that holds significant implications for frontier landscapes and communities. Such processes of rupture—consequential and unequal in their effects—are evident in the disruptions we now see in the wake of Covid-19 and the broader unfolding of our current nature–society crisis.

Muslims in the Central African Republic have experienced extreme violence for more than a decade. Through ethnographic fieldwork and archival research, this article shows how the foundations for contemporary violence were created through colonial and postcolonial state-making. The civilizing mission of republican colonialism set Muslims apart. Lifestyle and mobility were never fully colonized; escape depicted difference. Nationalist liberation mythologies render Muslim citizenship as foreign, precarious, and subject to ongoing contestation. Pentecostalism, a lateral liberation philosophy presented as patriotism, provides power to anti-Muslim discourse. Violence against Muslims is situated in an accumulated “pastness” of state-making and struggle in Central African historiography.

Much work has been produced on the passport and on exceptional regimes of mobility, notably asylum or permanent immigration. There has, by contrast, been less research on that intermediary, ubiquitous legal device that is the visa, a fundamental manifestation of state discretion, a major source of arbitrariness, and a constant assertion of power over moving bodies. The visa is a manifestation of and is embedded in a deeper infrastructure of limited global mobility. Adopting a global and comparative perspective, this Article seeks to analyze the politics of the visa as the indispensable sesame of international travel but also as the ultimate manifestation of that infrastructure’s arbitrariness. The Article highlights an ideal type of the visa especially as it is deployed towards “at risk” categories, emphasizing the sort of performance it requires from applicants in adapting to the system’s demands as they are relayed by officials, corporations and, increasingly, algorithms and artificial intelligence. It will highlight the constraints of applying for the visa, its temporal frames, its assorted conditions, and its denial and possibilities of contestation thereof. The Article contends that, globally, the visa is the key legal infrastructure to channel systemic discrimination, frustrate professional and cultural opportunities, and keep families apart in ways that entrench class and racial divides.

The Economic Community of West African States (“ECOWAS”) has established one of the most comprehensive free movement regimes. By declaring West Africa a borderless region, the organization affirms the right of free movement for all citizens of member states. Nevertheless, significant obstacles to securing this right persist and is particularly prevalent for female migrants. Studies reveal that widespread corruption, border harassment, and bureaucratic inefficiencies restrict female migration opportunities. However, current scholarship inadequately addresses the interrelation between regional mobility law, infrastructures, and female migration. This Article examines the gendered dimensions of access to mobility infrastructures from the perspective of ECOWAS officials. Mobility infrastructures are conceptualized as comprising legal, physical, and technological components that collectively facilitate or restrict movement. The analysis draws on documentary evidence and insights from 19 semi-structured interviews with ECOWAS Commission officials. It shows that access to mobility infrastructures is predominantly determined by embedded gender norms, laws, and practices. By analyzing accounts from officials involved in constructing the free movement regime, the Article provides unique insights into the disparities between institutional intentions, legal frameworks, and mobility trajectories. In doing so, it contributes to research on free movement in West Africa, mobility infrastructures, and the emerging scholarship on legal infrastructures.

This article examines conflicting notions of political home or homeland (waṭan) in the early twentieth-century Western Indian Ocean. In a period of colonial consolidation and shifts in trans-oceanic mobility, determining political belonging took on urgency for both British officials and Omani intellectuals and migrants. This article examines how, in contrast to both anti-colonial nationalists and British colonial officials, homeland in Omani religious scholarship was neither bounded territorially nor articulated through origins or subjecthood. Yet, it was spatial, affective, and hierarchically determined. And, it was manifest, embodied, and performed in the daily requirements of prayer. Spatial but not territorial, necessary but personally, hierarchically, and affectively decided, this pious notion of homeland has for the most part been replaced by the nation-state form. Yet, legacies of attachment to waṭan outside the bounded territorial model occasionally surface, operating as a simultaneous, but not synonymous, expression of political and personal belonging.

We present findings from historical microdata that suggest former rural elites effectively preserved their socio-economic advantages into the early People's Republic of China (PRC, circa 1949–1965) by exploiting urban–rural differences in government policies. In particular, former rural elites were three to four times more likely than poor peasants to move to a nearby town, and this urbanization was highly associated with socio-economic privileges in a rapidly developing economy, including both income and educational opportunities. We also find evidence that after 1949, former rural elites who did urbanize were more likely than their poor peasant counterparts to find industrial jobs.

This article examines the significance of mobility and transportation infrastructure in the early development of pan-Americanism and the formation of a vision of global transportation in South America in the late nineteenth century. Focusing on the 1880s and 1890s, I explore the connection between transportation and the economic and cultural expansionism of the United States, pan-American debates on intercontinental steamship service and an inter-American railroad, and South American approaches to international transportation, which both included and transcended the Americas. My case study contributes to scholarship on the global history of mobility and transportation by showing how, despite the intention of the United States to establish hemispheric exclusivity and hegemony, transportation became a subject of multilateral cooperation. South American experts and diplomats, I argue, renegotiated and reinterpreted the meaning of pan-American infrastructure, integrating it into a broader vision of global transportation that positioned their countries more prominently in worldwide traffic networks.

The article explores how the British Caribbean turned into an unlikely refuge for intercolonial escapees from slavery in the 1820s and 1830s. During this period, hundreds of enslaved men and women fled from French, Danish, and Dutch Caribbean colonies into British territories and entered in intense, and often contentious, encounters with low-ranking officials on the ground. The article examines how these individuals made use of legal ambiguities and loopholes in British slave trade abolition, thereby resetting, reinterpreting, and broadening the meaning and scope of freedom granted under it. The consequences of their actions were far-reaching and often uncontrollable, as they carved out a legal grey zone that created, in practice, a quasi-free-soil sanctuary in the heart of Britain’s planation complex. For more than a decade, local assemblies and officials, legal experts, British and foreign planters and their lobbies, foreign diplomats and British politicians grappled to close this grey zone. As it reincorporates enslaved fugitives in the history of state-sponsored antislavery, the article also shows how the case of these fugitives triggered a fierce debate about the essential parameters of imperial governance around 1800. This debate involved the renegotiation of the boundaries of freedom and slavery, and of subjecthood and (un)belonging. It gave rise to crucial questions related to imperial governance, including the scope of executive power and the challenge of coordinating imperial and colonial law as part of one coherent legal space. Because it involved other empires, the fugitives’ case also highlighted the connections between antislavery, sovereignty, and inter-state law.