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Interactive Trade Indicators



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   Export Value
   Import Value
   Export Growth
   Import Growth
   Export Share
   Import Share
   Trade Share
   Trade Intensity
   Regional Hirschmann
   Sectoral Hirschmann
   RCA
   Regional Orientation
   Complementarity
   Competitiveness
   IIT (Sectoral)
   IIT (Aggregate)
   IIT (Sectoral Marginal)
   IIT (Aggregate Marginal)
   Regional Market Share
IIT (Sectoral Marginal)
The marginal sectoral IIT index tells us how much of the change in the volume of trade between two periods is intra-industry trade. Evaluating changes in IIT over time needs to be done carefully, because the IIT index can remain constant even as the volume of intra-industry trade expands.

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Definition:
One minus the ratio in which the numerator is obtained as the absolute value of the change in exports in a given product category less the change in imports in the same category, and a denominator as the sum of the absolute values of the changes in exports and imports in the category.

Range of values:
The index ranges from 0 to 1, with zero indicating pure inter-industry trade, and one indicating pure intra-industry trade.

For further note on this indicator, including an example and formula, see the relevant section of Trade Statistics in Policymaking: A Handbook of Commonly Used Trade Indices and Indicators.
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