The vitamins price-fixing cartel

Claim under review

The question is whether major vitamin suppliers coordinated prices and market shares across global product lines.

The European Commission decision described agreements across several vitamin products, with varying participants and periods. U.S. pleas concerned the charged conduct and jurisdiction; neither source supports an undifferentiated claim that all vitamins or supplements had fixed prices.

Context and timeline

Roche, BASF and other producers coordinated prices and allocations for several vitamins. U.S. prosecutions and European Commission decisions documented meetings and agreements; firms paid criminal fines and civil settlements.

Cartel overcharge estimates compare prices to a hypothetical competitive level and depend on product-specific costs and demand. Levenstein and Suslow survey cartel success conditions but their broad synthesis is context, not a direct estimate of each vitamin market.

Primary records and formal findings

DOJ pleas and the European Commission decision establish cartel conduct for named products, firms and periods; not every vitamin or country was involved.

Product-specific meeting records, sales and price series can test duration and scope. Keep established agreement findings distinct from damages claimed by purchasers and from other supplement sectors without evidence.

Independent economic evidence

Levenstein and Suslow’s review of cartel research explains how price and output evidence can estimate overcharges, with varying results across products and durations.

Specific product and period boundaries matter because the Commission and DOJ records cover overlapping but not identical conduct. Damage estimates are not interchangeable with the finding of an agreement.

Counter-evidence and limitations

Settlements differ in admission and legal jurisdiction. High prices alone do not prove collusion; the record depends on communications, market definition and individual product lines.

Falsifiable checks and assessment

Match product-specific prices, output, meeting records and entry to alleged cartel periods; compare vitamins with unaffected products and distinguish cost shocks.

Assessment: Multiple vitamin cartels were legally established; extending findings to all supplement markets is unwarranted.

Sources and evidentiary notes

1. European Commission, Vitamins cartel decision (2001)Official competition findings detail products and participating firms. Its findings are limited to the parties, conduct, dates or mandate covered by that record.
2. U.S. DOJ, Roche and BASF criminal plea releases (1999–2001)Establish U.S. admissions and penalties. Its findings are limited to the parties, conduct, dates or mandate covered by that record.
3. Margaret C. Levenstein and Valerie Y. Suslow, “What Determines Cartel Success?” Journal of Economic Literature (2006)Academic synthesis of cartel duration and measurement. This work tests an economic interpretation; its estimates depend on data and assumptions and do not establish intent.

Historical research only; not investment or legal advice.