Trade glossary · institutions

BACI

Also known as: CEPII BACI

CEPII's reconciled bilateral trade dataset, the primary source behind World Trade Flows. Covers ~226 countries from 1995 to the most recent year, at HS6 detail.

BACI ("Base pour l'Analyse du Commerce International") is built from UN Comtrade. It uses a weighted-estimator reconciliation: countries with more reliable customs reporting get more weight in resolving discrepancies between exporter- and importer-declared values for each flow. Released annually in January, with full documentation and product-code concordances published by CEPII.

Examples

  • BACI 2023 release covers 1995–2022 flows.
  • The 2024 release adds 2023 data (used by World Trade Flows).
Authoritative source: CEPII BACI ↗

Related terms

CEPII
Centre d'Études Prospectives et d'Informations Internationales, a French research institute on international economics. Publishes BACI and other trade datasets.
UN Comtrade
United Nations Commodity Trade Statistics Database — the world's largest repository of customs declarations. Member states submit annual figures; CEPII BACI is built from these submissions.
Mirror trade statistics
Comparing one country's reported exports to a partner against the partner's reported imports from the same country. CEPII BACI reconciles the two using a weighted estimator.