What Drives Illicit Trafficking Networks

Successful illicit trafficking networks in source and transit areas are typically driven by a combination of structural conditions, such as state complicity or selective enforcement, economic incentives like arbitrage opportunities, and localized social dynamics including community participation and labor demand. These factors are especially visible in transit regions, where porous borders and cross-border price differences create ideal conditions for the movement of goods and people.
Many examples of illicit trafficking networks around the world reflect these recurring patterns. Structural conditions such as corruption and fragmented enforcement are often present, but localized dynamics, such as social networks and the normalization of informal practices, also play a critical role in sustaining these systems (Weigand 2020). In the case of the Thailand–Malaysia border, a key transit region, Weigand (2020) demonstrates how several of these factors converge in practice. These include state-tolerated smuggling fees, cheap and accessible informal border crossings, drug price arbitrage, and strong demand for migrant labor.
This region operates through selective enforcement and state complicity, not simply weak governance. Despite a heavy security presence, smugglers operating at scale reportedly pay regular fees to police, while authorities often “close one eye” to migrant smuggling activities. These practices are systemic and institutionalized, creating a predictable and sustainable environment for illicit networks. At the same time, the porous nature of the border with both official and numerous unofficial crossing points facilitates the easy movement of people and goods, reinforcing the region’s role as a transit zone.
Economic incentives further strengthen these networks. Price differentials across the border, such as cheaper petrol in Malaysia being smuggled into Thailand, or methamphetamine produced in Myanmar and trafficked through Thailand being sold at significantly higher prices in Malaysia, create strong profit opportunities. At the local level, these activities are embedded within a hybrid informal economy in which community members often participate in or tolerate smuggling as part of everyday life. In the case of human trafficking, labor demand is a key driver: Malaysia’s need for construction and domestic workers attracts migrants from Myanmar, Bangladesh, and Rohingya populations, many of whom rely on trafficking networks to cross the border and access employment opportunities (Weigand 2020).
Similar dynamics can be observed in conflict-affected transit environments such as Libya, Syria, and Yemen. In these contexts, economic incentives, arbitrage opportunities, and the complicity of state actors sustain illicit activities. In transit areas, economic activity often operates outside formal state control, with some officials informally cooperating with armed groups to share in the profits rather than enforcing regulations (Eaton and Mansour 2019). These regions illustrate how trafficking networks can become embedded within broader conflict economies, where control over trade routes and the ability to extract rents are central to sustaining both violence and illicit commerce.
Importantly, such networks do not depend exclusively on conflict zones or weak economies. Where profit opportunities exist, smugglers can be expected to emerge. For example, in the United States between March 1996 and July 2000, a Hezbollah-linked network based in Charlotte, North Carolina, operated a highly profitable cigarette smuggling scheme by exploiting tax differentials between North Carolina and Michigan. The network also engaged in a range of additional criminal activities, including sham marriages for immigration purposes, credit card fraud, and the procurement of dual-use technologies, in order to generate funds for Hezbollah and support its broader objectives (Leuprecht et al. 2017).

References:
Eaton, Tim, and Renad Mansour. 2019. Conflict Economies in the Middle East and North Africa. London: Chatham House. Updated October 18, 2023.
Leuprecht, Christian, Olivier Walther, David B. Skillicorn, and Hillary Ryde-Collins. 2017. “Hezbollah’s Global Tentacles: A Relational Approach to Convergence with Transnational Organized Crime.” Terrorism and Political Violence 29 (5): 902–921.
Weigand, Florian. 2020. Conflict and Transnational Crime: Borders, Bullets & Business in Southeast Asia. Cheltenham, UK: Edward Elgar Publishing.