The Trade in Value Added (TiVA) database is a collection of measures that can provide insights into global production networks and supply chains beyond what is possible with conventional trade statistics.

The TiVA database presented here contains a selection of principal indicators that track the origins of value added in exports, imports and final demand for the years 1995-2018.

This edition covers 66 economies (including all OECD, EU and G20 countries and most East and Southeast Asian economies) as well as region aggregates. Indicators are available for 45 industries within a hierarchy based on ISIC Rev. 4.

The indicators are derived from the OECD's Inter-Country Input-Output (ICIO) Database (see web page http://oe.cd/icio).

To construct ICIO tables, national Supply and Use tables (SUTs) and Input-Output tables (IOTs) are transformed (or harmonised) to standard formats and classifications, combined with bilateral trade in goods and services statistics from international sources, and then balanced under constraints based on official (SNA08) National Accounts by economic activity and National Accounts main aggregates time series. Prior to balancing, many data gaps need to be filled using a variety of estimation techniques. For more details, see http://oe.cd/icio where the underlying OECD ICIO tables are freely available for download.