Concepts: Cartel, oligopolies, regional monopoly
Background: Pablo Escobar calls a meeting with all local kingpins to urge them to form a coalition. Escobar offers to retain control of day-to-day activities. The other kingpins provide funding while receiving profits and security.
Question: How do you call such formal collusive behavior? Explain the reasons why Escobar and other kingpins agreed to market sharing.