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Australia
Australia’s economy is significantly concentrated. Approximately 60% of the national GDP is produced by two of Australia’s eight TL2 regions (New South Wales and Victoria), and almost 40% of the national population live in two of Australia’s 60 TL3 regions (Sydney and Melbourne).
Austria
Economic activity is more concentrated in Austria than on average in OECD countries; 10% of Austrian TL3 regions produce 44% of national GDP as opposed to 38% in OECD countries overall.
Belgium
Economic activity in Belgium is not significantly concentrated in comparison to other OECD countries. Its geographical concentration index is among the lowest in the OECD and no single TL3 region produces more than 20% of the national GDP.
Canada
In comparison to other OECD countries, economic activity is significantly concentrated in Canada where just one out of Canada’s 12 TL2 regions produces 35.5% of the national GDP (Ontario). Population is also significantly concentrated; according to the index of geographic concentration.
Czech Republic
Economic activity in the Czech Republic is not significantly concentrated in comparison to OECD countries. Indeed, the Czech Republic’s index of geographic concentration at the TL3 level is the second lowest among OECD countries.
Denmark
Disparities in GDP per capita among Denmark’s TL2 regions increased from 1995- 2006, although the increase was not consistent, with contrary movements in several years. Disparities reached their highest level in 2005, but since then regional differences appear to be declining again.
Finland
Finland’s economy is significantly concentrated in comparison to OECD countries. According to the index of geographic concentration Finland’s economy is the fifth most concentrated at the TL3 region level. In fact, 35% of the national GDP is produced by one of Finland’s 20 TL3 regions (Uusimaa), and 57% of ational GDP is produced one (Etela-Suomi) of Finland’s 5 TL2 regions.
France
Economic concentration in France resembles the OECD average, with 37% of national GDP produced by 10% of TL3 regions. Nonetheless, France’s TL2 capital region Ile de France produces a significant share of overall national output, 28% in 2007.
Germany
Germany’s economy is slightly less concentrated than the OECD average according to the index of geographic concentration at the TL3 regional level. The top 10% of German TL3 regions produce 35% of national GDP as opposed to 38% for the OECD as a whole.
Greece
The Greek economy is more concentrated than the OECD average, with 10% of Greek TL3 regions producing 43% of the national GDP. Moreover almost 40% of national GDP is produced by Attiki, one of Greece’s four TL2 regions.
Hungary
Economic concentration in Hungary resembles the OECD average according to the index of geographic concentration at the TL3 region level. Nonetheless, the top 10% of regions produce a larger share of total national output (45%) than the OECD average (38%).
Ireland
Economic concentration in Ireland among TL3 regions resembles the OECD average. Although concentration in GDP has increased over the past decade, the increase was lower than the average increase in 27 OECD countries.
Italy
Economic concentration in Italy resembles the OECD average: 39% of national GDP is produced by 10% of TL3 regions. Approximately 31% of national GDP is produced by two TL2 regions Lombardia (20.6%) and Lazio (10.2%).
Japan
Japan’s economy is slightly more concentrated than the OECD average, with 40% of national GDP concentrated in 10% of TL3 regions as opposed to 38% in the OECD overall.
Korea
Korea’s economy is significantly concentrated displaying the fourth highest index of geographic concentration of GDP among TL3 region in OECD countries. More than 40% of the national GDP is produce in only two (Seoul and Gyeonggi) of Korea’s 16 TL3 regions.
Mexico
Mexico’s economy is more concentrated than the average in OECD countries; approximately by 30% more according to the index of geographic concentration among TL2 regions. Moreover, more than one third (32%) of national GDP is concentrated in only two (Mexico and Distrito Federal) of Mexico’s 32 TL2 regions.
The Netherlands
Economic concentration in the Netherlands is not significantly concentrated in comparison to OECD countries. According to the index of geographic concentration the Netherland’s economy is the third lowest concentrated among OECD countries. In fact only 26% of the national GDP is produced in 10% of the Netherland’s TL3 regions as opposed to 38% in the OECD.
Norway
Norway’s economy is more concentrated among its TL3 regions than the average of OECD countries, approximately by 30% more according the index of geographic concentration among TL3 regions. Moreover almost one fourth (22%) of Norway’s GDP is produced in only one of its 19 TL3 regions (Oslo).
Poland
Poland’s economy is less concentrated than the OECD average according to the index of geographic concentration among TL3 regions. Nonetheless close to one-fifth of the national output (16.8%) is produced by the capital TL2 region Mazowiekie, one of Poland’s 16 TL2 regions.
Portugal
Portugal’s economy is very concentrated. According the index of geographic concentration in GDP it ranks heights among OECD countries. Moreover, 66% of Portugal’s GDP is produced in only two of its seven TL3 regions (e.g. Lisbon and Norte).
Slovak Republic
Economic concentration in the Slovak republic is the least concentrated among OECD countries. According to the index of geographic concentration the Slovak Republic’s economy ranks the lowest among OECD countries and its population is also the least concentrated among its TL3 regions.
Spain
Spain’s economy is more concentrated relative to OECD country where 10% of Spanish regions produce 44% of the national GDP as opposed to 38% in the OECD. Almost 60% of national GDP is produced in four TL2 regions: Cataluña (18.9%), Madrid (16.8%), Andalucia (13.5%) and Comunidad Valenciana (9.5%).
Sweden
According to the index of geographic concentration applied to TL3 regions, Sweden’s economy is the second most concentrated among OECD countries. Almost 60% of Sweden’s GDP is produced in three of 21 TL3 regions (Stockholm, Västra Götlands and Skåne).
Switzerland
Inequality in GDP per capita among Switzerland’s TL2 regions increased over the period 1980-2007. After fluctuating up to the mid 1990s, inequality increased steadily since 1995.
Turkey
Turkey’s economy is more concentrated than on average in OECD countries. 10% of Turkish TL3 regions produce 54% of the national output as opposed to 38% in OECD countries.
United Kingdom
The United Kingdom displays the third highest concentration of economic activity among TL3 regions within OECD countries according to the index of geographic concentration. The TL2 region of London alone produces almost one-fifth of United Kingdom’s GDP.
United States
Economic activity in the United States (among TL2 regions) is more concentrated than in OECD countries where 39% of national GDP is produced by 10% of regions as opposed to 35% in OECD countries. In fact almost 30% of national GDP is produced by California (12.6%), New York (8.2%) and Texas (7%).
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