This table provides market concentration and structural change indices for exports and imports by product group. The first indicator shows whether a product market is concentrated in a few economies or more homogeneously distributed among several economies. The structural change index shows whether the distribution of the world market share across exporters or importers for a product differs from the benchmark year (1995).
Historical versions of this dataset since 25 三月 2014 are available.
The information about original data source is available only to premium users.