But Colombia’s armed conflict is such that in any given region, there is usually only one group of traffickers that holds sway. That group is the sole local buyer of coca leaf, so it dictates the price, just as Walmart is sometimes able to set the price of the produce it buys. This means that if the cost of producing the leaf goes up—owing to eradication, disease, or anything else—it will be the farmers who bear the cost, not the cartel.
