Violence and organized crime

Organized Crime | Week 6, Lecture 11

Professor Julian E. Gerez

May 4, 2026

Roadmap: Violence and organized crime

  • Last time: other types of “organized” crime
    • White-collar criminals, terrorists, insurgents, vigilantes: same tools, different purposes?
    • Any questions from last week?
  • Today: the puzzle of violence in criminal markets
    • The puzzle: violence is costly, so why does it happen?
    • Violence within groups
    • Violence between groups
    • Violence between groups and the state

What is the most effective way to reduce OC violence?

The puzzle: violence is costly

  • Criminal organizations have strong reasons to avoid violence
    • Attracts law enforcement attention; may weaken trust within the organization; triggers retaliation from rivals; profits fall: demand drops, expenditures rise
  • Yet violence is strongly associated with organized crime, and varies
  • When and why does organized crime use violence?

Drug war-related murders in Mexico over time

Violence within groups

Disciplinary violence

  • Recall: the principal-agent problem
    • A principal delegates a task to an agent, but cannot perfectly monitor them
    • The agent has private information and their own interests, so incentives may not be aligned
  • Criminal organizations cannot enforce contracts through courts or other formal mechanisms
    • Disputes over pay, responsibilities, or turf cannot be settled legally
    • Disciplinary violence is how organizational control is exercised
  • Leaders use disciplinary violence against subordinates for two reasons:
    1. Punishment: members who steal, underperform, or inform face physical sanction
    2. Preventative: the longer a subordinate stays, the more they know
      • Information accumulated over time becomes a liability if they defect or get arrested
      • Leaders may eliminate subordinates before they become a threat

Successional violence

Legal firms Criminal organizations
Employees demonstrate performance through verifiable records and credentials Performance is hard to observe and harder to verify: superiors get weak signals of quality
Promotions follow observable procedures and merit Advancement is opaque and informal; violence may substitute for merit
Disputes go to HR or courts Disputes resolved with violence or side-deals
Leadership transitions follow formal succession mechanisms Often no formal succession mechanisms, power vacuums resulting from uncertainty
  • If disciplinary violence flows downward, successional violence flows upward from:
    1. Signaling: violence is a way to demonstrate capability
      • Or even move up if you kill a higher-ranking member
    2. Leadership transitions: when a leader exits, internal rivals compete to fill the vacuum
      • Law enforcement targeting of leaders can trigger the very violence it aims to suppress

Think-pair-share: violence within criminal groups

  • Disciplinary violence:
    • Leaders sanction members who steal, underperform, or inform
    • Or preventatively eliminate them before they become a threat
  • Successional violence:
    • Members signal resolve through violence to move up the ranks
    • Leadership transitions create power vacuums
  • Think about the criminal group at the center of your final project:
    • Does your group use disciplinary violence? What does it look like?
    • Does your group experience successional violence? When and why?
    • If neither: what substitutes for these mechanisms?
  • You don’t need to move around; discuss with whoever is sitting near you

Violence between groups

Private information and signaling

  • If fighting is costly, why don’t criminal groups always negotiate instead?
  • Each side has private information about their own strength, resources, and resolve
  • And incentives to misrepresent that information:
    • Everyone claims to be stronger than they are
    • Cheap threats are not credible
  • Because rivals cannot tell truth from bluff, negotiations often fail
  • Violence is a costly signal that reveals information
    • For example, groups that keep fighting demonstrate actual strength
  • How does information asymmetry play a role in between group violence:
    • A new group enters a market?
    • Enforcement disrupts an existing group?
    • A leader is replaced?

Commitment problems

  • Even when groups agree on relative strength, negotiations can still fail
  • A commitment problem arises when you cannot credibly promise to stick to a deal
    • No higher authority to enforce promises
    • The compromise now may create future vulnerability
  • First-strike advantages: hitting first gives a major strategic advantage
  • Shifting power: better to fight now than negotiate from a worse position later
  • Strategic turf: conceding territory or a market may hand the rival greater future power

Walter White and Gus Fring face off in Breaking Bad

Issue indivisibility

  • Some disputes cannot be easily split or compromised, such as territory
    • A street corner, a trafficking route, a prison wing: you control it or you don’t
  • If no “middle ground” exists, there is no settlement both sides prefer over fighting
  • In criminal markets, indivisibility is often socially constructed
    • Groups invest in making turf symbolic: retreat becomes reputationally costly
    • Once that happens, compromise is no longer just a strategic loss but a signal of weakness

CV 70, 70s, for Compton Varrio 70, or Setentas. CV 70, in white with a black outline, is written in Old English letters. Compton Varrio is the regional designation. Latin Kings graffiti

Think-pair-share: violence between criminal groups

  • Even though it’s costly and groups may be better off negotiating, groups fight:
    • Private information and signaling: to communicate what negotiation cannot
    • Commitment problems: because no one can credibly promise to stick to a deal
    • Issue indivisibility: because some things cannot be split
  • Think about the criminal group at the center of your final project:
    • Which mechanism best explains violence between your group and its rivals?
    • Do multiple mechanisms apply at once?
    • You don’t need to move around; discuss with whoever is sitting near you
  • By the way, these are the same reasons that states go to war!

Violence between groups and the state

The state as victim

  • More likely when the state intensifies enforcement: violence is a backlash
  • More likely when the organization has broader political goals beyond market control
  • Targets vary by purpose:
    • Honest officials: eliminate effective opponents; deter others
    • Corrupt officials: punish those who fail to deliver; discipline the protection market
    • Politicians and judges: undermine prosecution and extradition

People carrying the coffin of late Mayor Carlos Manzo, who was shot on Saturday night in Uruapan, a city of 350,000 in western Mexico.

  • People carry the coffin of Mayor Carlos Manzo, shot in Uruapan, Mexico (2025)
  • In the first half of 2025, 112 political assassinations in Mexico (Interaglia)
  • In the first 10 months of 2025, 300+ police officers killed (Common Cause)

The state as perpetrator

  • Organized crime enforcement is among the most violent forms of non-war state action
    • Disproportionately concentrated in poor and marginalized communities
  • Enforcement signals state capacity and hopes to deters future criminal activity
  • Political pressure to “do something” about crime rewards visible, aggressive action
  • Violence may substitute for the institutional capacity to prosecute

Police preparing for a drug raid in a Rio de Janeiro favela

  • Operation Containment
    • Rio de Janeiro, 2025
    • 121 people killed in raid
    • 4 police officers were killed
    • Targeted Comando Vermelho
    • Alemão and Penha favelas

The state as collaborator

  • The state is not always a neutral enforcer: it can be a partner in criminal violence
  • State actors collaborate with criminal organizations when:
    • Officials are bribed to look the other way or share intelligence
    • The state selectively enforces against rivals of a protected group
    • Criminal organizations provide services to the state such as votes

Colombian paramilitaries with their arms

Colombian paramilitaries influenced elections and received favorable treatment including less coca eradication in return

Think-pair-share: the state and criminal violence

  • The state plays three distinct roles in criminal violence:
    • Victim: targeted by criminal organizations to deter enforcement or undermine the state
    • Perpetrator: uses violence to signal capacity and suppress criminal activity
    • Collaborator: partners with criminal organizations for mutual benefit
  • Think about the criminal group at the center of your final project:
    • Which role best describes the state’s relationship to your group?
    • Does the state play more than one role at once?
    • You don’t need to move around; discuss with whoever is sitting near you

Why are some illegal markets more violent than others?

Not all illegal markets are violent

High violence Low violence
Illegal Mexico current day and Colombia 1990s drug trade; poaching in DRC and Kenya Japan yakuza drug markets; Burma opium after 1990; poaching in Namibia; illegal marijuana markets
Legal Diamonds, gold, emeralds (Liberia, Sierra Leone, Colombia) Retail and consumer goods
  • The naive answer: illegality breeds violence
  • Snyder and Durán-Martínez: the key variable is institutions of protection
    • When state officials and OC form stable arrangements, markets can be peaceful
    • When those arrangements break down, violence follows

Case study: cooperation in Mexico under PRI hegemony

  • The PRI (Institutional Revolutionary Party) ruled Mexico for 70+ years (1929–2000)
    • Centralized political control extended across all levels of government
    • “Corruption is not a characteristic of the system… it is the system” (Morris, 2009)
  • This created ideal conditions for a state-sponsored protection racket:
    • Dominant party “the perfect dictatorship” \(\rightarrow\) one set of rules, predictable enforcement
    • Long time horizons: officials expected to stay in place, deals could be honored
    • Centralized geography of enforcement: one protector, several organizations

PRI logo El dedazo — the PRI practice of the outgoing president hand-picking his successor

Case study: breakdown of state-OC cooperation

  • Democratization shortened time horizons and fragmented enforcement
    • Uncertainty about electoral outcomes
    • Different parties won office across states \(\rightarrow\) no single set of rules anymore
    • Anti-corruption reforms: officials rotated more frequently meant deals couldn’t be honored
  • Without stable state partners, OC turned to violence to protect their markets
  • Then: Mexican federal government launches its own war on drugs (2006)
    • Kingpin strategy fragmented DTOs, creating vacuums and waves of violence

President Calderón Drug war-related murders in Mexico over time

Revisiting effectiveness

For Wednesday: criminal governance

  • Today: when and why does organized crime use violence?
    • Violence within groups: discipline and succession
    • Violence between groups: information, commitment, and indivisibility
    • Violence between groups and the state: victim, perpetrator, collaborator
    • Why some markets are more violent than others
  • We did not cover everything: drug market violence also travels into homes through debt collection, theft, and parental preemption
  • Next lecture: criminal governance
  • Questions?

Read before Wednesday:

Lessing, Benjamin. 2021. “Conceptualizing Criminal Governance.” Perspectives on Politics 19(3): 854–873.

(Available on Perusall via Canvas)