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Compilation Methodology

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Trade data methodological reference #

Please refer to the following document: Methodology Guide for UN Comtrade. It describes the extended data items of IMTS 2010, which include the following: mode of transport, customs procedure codes, second partner country, FOB valuation for imports, expanded trade flow breakdowns, alternative quantity units, gross vs. net weight, improved quantity estimation, pre-aggregated data, and classification conversions.

The description of UN Comtrade data items is located at https://comtradeapi.un.org/files/v1/app/wiki/ComtradePlus_DataItems.xlsx

International standards on trade statistics #

Please see the UNSD Trade Methodology page, which provides links to the following:

  • IMTS2010: Concepts and Definitions for merchandise trade.
  • MSITS2010: Manuals for trade in services.
  • Compilers Manuals: Best practices and case studies.