Golden Opportunity, or a New Twist on the Resource–Conflict Relationship: Links Between the Drug Trade and Illegal Gold Mining in Colombia

•Fieldwork on the subnational realities of armed conflict was conducted in Colombia.•Links between illicit crops, gold mining, armed conflict, and crime were analyzed.•We found that illegal organizations develop resource portfolios to fund activity.•Resource portfolios consist of multiple and interchangeable resources.•We show the difficulty of overcoming legacies of war economies for peacebuilding. Resource wars face greater difficulties to end conflict, as well as greater probabilities of relapse. In part, this is due to the persistence of resource-fueled criminal networks developed under the auspices of armed conflict. In this paper we focus on the Colombian armed conflict, one of the longest-lasting conflicts in the world. Recent evidence suggests that gold mining in Colombia has been permeated by illegal organizations linked to the drug trade, driving armed conflict and criminality. This reveals that attention to drugs alone as a conflict resource in this particular case has overshadowed the degree to which legal resources and economic activities have been permeated by illegal organizations and interests. This paper provides a framework of the gold–drugs relationship, which reveals the existence of resource portfolios, or the parallel participation and exchangeability of resources in the provision of funding for illegal organizations. We argue that, in addition to the impact of each resource on armed conflict and criminality, illegal organizations develop abilities to extract benefits of different resources at once or interchangeably (a resource portfolio), which should be taken into account when analyzing the consequences of war on countries’ social and economic institutions. In addition, political or reputational factors have been insufficiently considered in analyzing groups’ decisions to engage in or abandon specific economic activities. We show that, along with expectations of revenue, resource portfolios may also respond to political conditions, as illegal organizations accustomed to deriving income from coercive practices such as kidnappings—until recently a widespread phenomenon in Colombia—have caused increasing international and domestic outrage followed by pressure to stop this brutal violation of Human Rights. Based on field research in gold mining Colombian regions—combining more than seventy semi-structured interviews with first-hand observation during field trips—and a careful review of press, non-governmental organizations’ and officia