The Organisation for Economic Co-operation and Development (OECD) International Trade by Commodities Statistics (ITCS) contains annual time series data from 1961 onwards on foreign trade of the OECD's Member countries and selected non-OECD countries (China, Hong Kong China and Chinese Taipei). It provides detailed data on commodity and partner country in value and in quantity. The ITCS is split into five databases:
**The UK Data Service provides access to the ITCS - Standard International Trade Classification (SITC) Rev.2 database only.**
Background to the OECD ITCS classification by commodity systems
Since 1988, OECD receives data according to Harmonized Commodity Description and Coding System (HS) or in a more disagregated level. Data are then converted into Standard International Trade Classification (SITC) Rev. 3 and Rev. 2. From 1991, data may be obtained according to SITC Rev. 2, SITC Rev. 3. From 1996, data may be obtained according to SITC Rev. 2, SITC Rev. 3 or HS 96. However, it should be noted that if it is easily feasible to convert data from a recent revision to an older one, the conversion from SITC Rev. 2 to SITC Rev. 3 is quite delicate, if not impossible. Consequently, to obtain a consistent time series, one should carefully choose which revision to use. This is why from 1961 to 1987 data are only available in SITC Rev. 2, which are contained in the OECDs Historical series in SITC Rev. 2 from 1961 to 1990.
The SITC has been regularly revised to take into account the structural changes of the market according to the appearance of new commodities and the need of more detailed statistics on some commodity groups. OECD provides two versions: the SITC Revision 2 and the SITC revision 3. The first version (Revision 1) was introduced in 1960. The second version (SITC Rev. 2) containing 2582 products was introduced and adopted by most Member countries in 1978. The third version (Rev. 3) which contains 4346 products, has been used from 1988 onwards, except the United States and Turkey which have adopted data in Rev. 3 only from 1989 onwards.
An official version of the HS, was instituted in 1988 (HS 88). The HS has been revised in 1996 (HS 1996) and in 2002 (HS 2002) to take into account new trends in the composition of international trade. The HS is broken down by chapter (two-digit), by heading (four-digit) and by subheading (6 digit). SITC rev. 3 was developed in 1988 in the same way as the HS, this is why it follows the structure of the HS, so that the smallest SITC units are defined by HS subheadings. Since 2002, data are collected according to the HS 2002 and then converted to older classifications, which might affect the allocation of some commodities.
Both the HS and SITC classifications serve the same purpose, to provide extensive commodity trade data for example on Trade negotiations, monitoring of economic trends, monitoring of various flows of goods, balance of payments, national accounts, market analysis, supply balance sheets, and budgetary control.
The ITCS contains three type of series:
i) Data for individual reporter country (each reporter country is individually presented in one table in Beyond 20/20)
ii) Trade conversion factors for all OECD Member countries (see below for conversion rates)
iii) Total trade, imports and exports for each OECD member country
From 1 January 1999, the conversion rates for the Euro-zone countries from national currencies into USD are calculated using the Euro/USD exchange rate and the fixed Euro/national currency exchange rates.
Euro conversion rates
Reporting countries: OECD Member countries plus China, Hong-Kong-China, and Chinese Taipei and EU15.
The OECD publishes data received directly form the Statistical Office of the European Communities (EUROSTAT) under the name EU15 – Extra EU, which excludes Intra-EU trade (cf. definitions: Differences between OECD statistics and Community statistics of Eurostat).
Partner countries (260 different countries).
Access OECD data
Access to the OECD International Trade by Commodity Statistics via Beyond 20/20 is available to all UK Further/Higher Education (FE/HE) users, including undergraduates, postgraduates, researchers and staff at an FE/HE institution in the UK.
The OECD ITCS Definitions and Country Notes provides information on series definitions, reporting country notes, a list of partner countries and country zones.
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