Zimbabwe | 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 Zimbabwe
Records
53
Source
Zimbabwe | Import 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 0.05583397
1996 0.05538395
1997 0.05413791
1998 0.05507431
1999 0.05436662
2000 0.16485477
2001 0.16177983
2002 0.11113892
2003 0.08506573
2004 0.11358756
2005 0.13310774
2006 0.13343991
2007 0.12421517
2008 0.13681192
2009 0.09456288
2010 0.10436203
2011 0.08220925
2012

Zimbabwe | 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 Zimbabwe
Records
53
Source