IIT (Sectoral Marginal)
IIT (Aggregate Marginal)
Regional Market Share
|IIT (Aggregate Marginal)
This index gives us an overall measure of how much of the trade expansion between two periods was intra-industry, and how much was intra-industry.The aggregate marginal intra-industry trade index is the marginal equivalent of the aggregate IIT index and is obtained as a weighted average of the sectoral indices, with the weights provided by the shares in marginal trade.
The marginal trade share weighted average of the marginal IIT indices for each sector
of the economy.
Range of values:
The index ranges from 0 to 1, with zero indicating pure marginal inter-industry trade, and one indicating pure marginal 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.