The global lysine price-fixing cartel

Claim under review

The question is whether major producers agreed to fix prices and allocate output in the animal-feed lysine market.

The lysine cartel was unusually well documented because investigators obtained recordings and cooperating testimony about meetings where prices and output were discussed. Those records allowed prosecutors to prove an agreement rather than infer collusion from parallel price increases.

Context and timeline

Lysine producers Archer Daniels Midland, Ajinomoto, Kyowa Hakko and others met and exchanged information on prices and output. U.S. investigation used cooperating witnesses and recordings; corporate and individual convictions followed.

Cartel duration and overcharge estimates depend on selecting a competitive benchmark and accounting for demand, costs and entry. Academic meta-analysis summarizes many cartels, but its pooled estimates cannot substitute for lysine transaction data.

Primary records and formal findings

DOJ indictments, guilty pleas and trial records document meetings and price agreements, making this a proven cartel rather than speculation.

The convictions apply to specified firms and executives during the charged period. They do not show that every market participant followed the agreement or that prices outside the cartel dates were competitive.

Independent economic evidence

Connor and Helmers analyze cartel duration and price effects using market prices and trade data, estimating overcharges while noting counterfactual uncertainty.

Recorded meetings and trial evidence make this a proven cartel case, unlike allegations inferred only from parallel prices. Overcharge estimates remain model-dependent and narrower than the criminal finding.

Counter-evidence and limitations

Convictions concern named firms and executives over defined periods; they do not imply every market participant or every price change was collusive. Estimates vary by benchmark and market response.

Falsifiable checks and assessment

Compare transaction prices and output during cartel dates with pre- and post-periods and unaffected feed inputs; verify meeting dates against sales and customer invoices.

Assessment: A specific international price-fixing conspiracy was proven in court; claims beyond the participants and period require new evidence.

Sources and evidentiary notes

1. U.S. v. Andreas et al., criminal trial and convictions (1996–99)Court evidence and outcomes establish the agreement. It addresses this episode but cannot alone resolve the broader causal question.
2. DOJ, ADM lysine cartel case materials (1996)Prosecutor record summarizes recordings and pleas. Its findings are limited to the parties, conduct, dates or mandate covered by that record.
3. John M. Connor and Yuliya Bolotova, “Cartel Overcharges: Survey and Meta-Analysis,” International Journal of Industrial Organization (2006)Independent economic estimates and methodological limitations.

Historical research only; not investment or legal advice.