BACI Dataset

BACI Dataset Documentation BACI provides data on bilateral trade flows for 200 countries at the product level (5000 products). Products correspond to the "Harmonized System" nomenclature (6 digit code). BACI relies on data from the United Nations Statistical Division (Comtrade dataset). Since countries report both their imports and their exports to the United Nations, the raw data we use may have duplicates flows: trade from country i to country j may be reported by i as an export to j and by j as an import from i. The reported values should match, but in practice are virtually never identical, for two reasons: Import values are reported CIF (cost, insurance and freight) while exports are reported FOB (free on board). Mistakes are made, because of uncertainty on the final destination of exports, discrepancies in the classification of a given product, etc... Licensed EtaLab Open Licence v2.0, original data downloaded from http://www.cepii.fr/CEPII/en/bdd_modele/bdd_modele_item.asp?id=37"

BACI数据集文档

BACI数据集为200个国家提供产品层级的双边贸易流量数据，共计涵盖5000种产品。产品采用《协调制度》（Harmonized System）命名编码体系，以6位代码标识。

BACI数据集的数据源为联合国统计司的Comtrade（商品贸易）数据集。由于各国会分别向联合国申报本国的进口与出口数据，因此原始数据中可能存在重复的贸易流量：从国家i到国家j的贸易，既会被i国作为对j国的出口申报，也会被j国作为从i国的进口申报。

理论上两国申报的贸易价值应当一致，但实际中几乎从未完全相同，原因有二：其一，进口价值以CIF（成本、保险费加运费，cost, insurance and freight）计价，而出口价值则以FOB（船上交货价，free on board）计价；其二，出口最终目的地的认定存在不确定性、特定产品的分类存在差异等问题均会导致数据误差。

本数据集采用EtaLab Open Licence v2.0开源许可协议，原始数据下载自：http://www.cepii.fr/CEPII/en/bdd_modele/bdd_modele_item.asp?id=37

搜集汇总

背景与挑战

背景概述

BACI数据集提供200个国家间5000种产品的双边贸易流量数据，产品按'Harmonized System'六位编码分类，数据源自联合国统计司的Comtrade数据集，并解决了进出口报告中的不一致问题。