Guinea-Bissau vs Nigeria: Export product concentration index
Export product concentration index over time
- Guinea-Bissau
- Nigeria
How they compare
Guinea-Bissau currently reports 0.8939 against 0.8151 in Nigeria, a difference of 0.0788.
That makes Guinea-Bissau's figure about 1.1 times Nigeria's.
The two have swapped places 1 time across 17 shared years of data; in 1995 it was Nigeria ahead.
Guinea-Bissau ranks 4th and Nigeria ranks 5th of 53 countries.
Across the 3 decades both report, Guinea-Bissau averaged higher in 1 and Nigeria in 2.
Head to head by decade
| Decade | Guinea-Bissau | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 0.4976 | 0.8793 | 0.3818 | Nigeria |
| 2000s | 0.7925 | 0.8786 | 0.086 | Nigeria |
| 2010s | 0.8939 | 0.7882 | 0.1057 | Guinea-Bissau |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher export product concentration index, Guinea-Bissau or Nigeria?
- Guinea-Bissau, at 0.8939 against 0.8151 in Nigeria as of 2011.
- What is the difference in export product concentration index between Guinea-Bissau and Nigeria?
- 0.0788, with Guinea-Bissau ahead.
- How many years of comparable data are there for Guinea-Bissau and Nigeria?
- 17 years are reported by both, from 1995 to 2011.
- How do Guinea-Bissau and Nigeria rank globally for export product concentration index?
- Guinea-Bissau ranks 4th and Nigeria ranks 5th of 53 countries.
- Where does this data come from?
- UNCTAD Statistical Office, also reported in the UNCTAD Handbook of Statistics, various issues (http://unctadstat.unctad.org/), published as Export product concentration index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
This indicator reflects the Herfindahl-Hirschmann index measure of the degree of export concentration within a country. The sectoral Hirschmann index is defined as the square root of the sum of the squared shares of exports of each industry in total exports for the region under study. Takes a value between 0 and 1, with 1 indicating that only a single product is exported. Higher values indicate that exports are concentrated in fewer sectors. On the contrary, values closer to 0 reflect a more equal distribution of market shares among exporters. Note that this type of concentration indicator tends to be quite vulnerable to cyclical fluctuations in relative-prices, in a way that commodity price rises make commodity exporters look more concentrated.