# Trinidad and Tobago Inequality Stats

#### Definitions

• GINI index: Gini index measures the extent to which the distribution of income (or, in some cases, consumption expenditure) among individuals or households within an economy deviates from a perfectly equal distribution. A Lorenz curve plots the cumulative percentages of total income received against the cumulative number of recipients, starting with the poorest individual or household. The Gini index measures the area between the Lorenz curve and a hypothetical line of absolute equality, expressed as a percentage of the maximum area under the line. Thus a Gini index of 0 represents perfect equality, while an index of 100 implies perfect inequality."
• Income share held by fourth 20%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles. Percentage shares by quintile may not sum to 100 because of rounding.
• Income share held by highest 10%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles.
• Income share held by highest 20%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles. Percentage shares by quintile may not sum to 100 because of rounding.
• Income share held by lowest 10%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles.
• Income share held by lowest 20%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles. Percentage shares by quintile may not sum to 100 because of rounding.
• Income share held by second 20%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles. Percentage shares by quintile may not sum to 100 because of rounding.
• Income share held by third 20%: Percentage share of income or consumption is the share that accrues to subgroups of population indicated by deciles or quintiles. Percentage shares by quintile may not sum to 100 because of rounding.
STAT AMOUNT DATE RANK HISTORY
GINI index 40.27 1992 13th out of 25
Income share held by fourth 20% 22.74% 1992 5th out of 25
Income share held by highest 10% 29.89% 1992 14th out of 25
Income share held by highest 20% 45.89% 1992 13th out of 25
Income share held by lowest 10% 2.07% 1992 16th out of 25
Income share held by lowest 20% 5.51% 1992 16th out of 25
Income share held by second 20% 10.33% 1992 13th out of 25
Income share held by third 20% 15.53% 1992 12th out of 25

SOURCES: World Bank, Development Research Group. Data are based on primary household survey data obtained from government statistical agencies and World Bank country departments. Data for high-income economies are from the Luxembourg Income Study database. For more information and methodology, please see PovcalNet (http://iresearch.worldbank.org/PovcalNet/jsp/index.jsp).

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