Guinea-Bissau | Import product concentration index
This indicator reflects the Herfindahl-Hirschmann index measure of the degree of import 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 imports are concentrated in fewer sectors. On the contrary, values closer to 0 reflect a more equal distribution of market shares among importers. 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 importers look more concentrated.
Publisher
The World Bank
Origin
Republic of Guinea-Bissau
Records
53
Source
Guinea-Bissau | Import product concentration index
1960
1961
1962
1963
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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
1986
1987
1988
1989
1990
1991
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1994
0.10708231 1995
0.12035624 1996
0.14411019 1997
0.10310381 1998
0.10294527 1999
0.10761948 2000
0.07949593 2001
0.08689777 2002
0.14621615 2003
0.14388645 2004
0.32673382 2005
0.18130452 2006
0.13314419 2007
0.16483503 2008
0.22813763 2009
0.13990173 2010
0.1586041 2011
2012
Guinea-Bissau | Import product concentration index
This indicator reflects the Herfindahl-Hirschmann index measure of the degree of import 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 imports are concentrated in fewer sectors. On the contrary, values closer to 0 reflect a more equal distribution of market shares among importers. 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 importers look more concentrated.
Publisher
The World Bank
Origin
Republic of Guinea-Bissau
Records
53
Source