Guinea-Bissau | Export product concentration index

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.
Publisher
The World Bank
Origin
Republic of Guinea-Bissau
Records
53
Source
Guinea-Bissau | Export product concentration index
1960
1961
1962
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1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
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1987
1988
1989
1990
1991
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1994
0.50155705 1995
0.49908875 1996
0.4990572 1997
0.43664747 1998
0.55147304 1999
0.58545378 2000
0.75582434 2001
0.68375121 2002
0.69438545 2003
0.71761688 2004
0.92573111 2005
0.88569521 2006
0.88793941 2007
0.89480977 2008
0.89393654 2009
0.89381995 2010
0.89393493 2011
2012

Guinea-Bissau | Export product concentration index

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.
Publisher
The World Bank
Origin
Republic of Guinea-Bissau
Records
53
Source