Comtrade SDMX Overview

What is UN Comtrade? United Nations Commodity Trade Statistics Database Imports, Exports, Re-exports Commodity by Trading Partner Annual data Value in US dollars Net weight and secondary quantities About 140 reporters per year (>90% of the World Trade)

Key elements Classifications and Commodity Codes Reporter Partner Harmonized System SITC Reporter Partner Trade Flow Year

Comtrade & SDMX Comtrade was involved in early version of SDMX version 1.0 As one of the alignment projects Comtrade was the first test case for SDMX Cross Sectional (data series) Comtrade SDMX initially used for data exchange between UNSD and OECD

Comtrade SDMX (beta) Comtrade uses SDMX cross-sectional format. Each commodity classification has a specific Key Family. Therefore, there are 6 key families: for HS2002, HS1996, HS1992, SITC Rev.3, SITC Rev.2, and SITC Rev.1 Explanatory notes are integrated with Comtrade SDMX. This is a beta version. The SDMX structure can be modified. Comtrade Web Services are available for limited users. http://unstats.un.org/unsd/comtrade/help/ComtradeSDMX.aspx

Key Families Data series defined in SDMX Key Families element structure:Dimension To define possible positions, fill the attributes crossSectionalAttachDataset/Group/Section/Observation

Example

Notes Time dimension must be on Group Level Compare to SDMX TS, time dimension is on Observation Level Schema must be created for each SDMX CS Comtrade SDMX uses custom namespace uncs Comtrade SDMX is available on the internet http://unstats.un.org/unsd/comtrade