A price-fixing cartel is built to be undetectable: the only people who ever see the agreement are the members who made it, and every one of them profits from the others' silence holding. DOJ's original 1978 Corporate Leniency Program already offered confessors reduced treatment, but the reward was a prosecutor's discretionary call, not a guarantee — a company weighing whether to confess could not calculate what it would actually get, only that it would be handing over a finished case against itself. The program drew about one application a year and never cracked a major cartel.

The standard tools for catching secretive crime — raids, subpoenas, wiretaps, longer sentences — all require already knowing roughly where to look, and cartels exist precisely to leave no such signal outside the conspiracy. DOJ's actual problem was not a shortage of investigators or evidence; every cartel member already held the evidence to convict every other member. The shortage was a reason for any single one of them to be first to hand it over.

Guaranteed full amnesty by rule to the first cartel member to confess, turning shared silence into a race no member can afford to lose.

Guaranteed amnesty lets a company calculate the value of confessing instead of guessing at a prosecutor's discretion.

Exclusivity to the first arrival turns each member's rational move: staying silent is only safe if all others stay silent.

Once a no-risk exit exists for exactly one confessor, no member can verify the others won't take it, creating a race.

The credible threat of severe sanction for staying silent makes the race worth winning.

To break a group protected by shared silence, don't just threaten harder; offer complete, guaranteed protection, but only to the first one who comes forward.

Leniency applications rose nearly twentyfold after the 1993 revision, per the Division's own account, turning it into what DOJ calls its single most effective investigative tool. Since fiscal year 1996, cartel fines in the United States have exceeded $5 billion, with more than 90 percent of that total tied to investigations a leniency applicant helped initiate or advance.

FOLLOW THE EVIDENCE

The sources

  1. The Evolution of Criminal Antitrust Enforcement Over the Last Two Decades U.S. Department of Justice, Antitrust Division (Scott D. Hammond) · justice.gov
  2. Strategic Leniency and Cartel Enforcement American Economic Review · aeaweb.org