Tunisia | 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
Tunisian Republic
Records
53
Source
Tunisia | Export product concentration index
1960
1961
1962
1963
1964
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
1992
1993
1994
1995 0.21275178
1996 0.22499902
1997 0.21252583
1998 0.21745999
1999 0.21014408
2000 0.20657176
2001 0.20226581
2002 0.19874005
2003 0.19775052
2004 0.19130629
2005 0.17951021
2006 0.1687335
2007 0.17322817
2008 0.17286959
2009 0.15624998
2010 0.16197773
2011 0.1603534
2012

Tunisia | 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
Tunisian Republic
Records
53
Source