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What is Foster Greer Thorbecke mean?
The Foster–Greer–Thorbecke indices are a family of poverty metrics. The most commonly used index from the family, FGT2, puts higher weight on the poverty of the poorest individuals, making it a combined measure of poverty and income inequality and a popular choice within development economics. The indices were introduced in a 1984 paper by economists Erik Thorbecke, Joel Greer, and James Foster.
The individual indices within the family are derived by substituting different values of the parameter α into the following equation:
F G T α = 1 N ∑ i = 1 H ( z − y i z ) α {\displaystyle FGT_{\alpha }={\frac {1}{N}}\sum _{i=1}^{H}\left({\frac {z-y_{i}}{z}}\right)^{\alpha }}
where z is the poverty threshold, N is the number of people in the economy, H is the number of poor (those with incomes at or below z), yi is the income of each individual i. If α {\displaystyle \alpha } is low then the FGT metric weights all the individuals with incomes below z roughly the same. The higher the value of α, the greater the weight place on the poorest individuals. The higher the FGT statistic, the more poverty there is in an economy.
referencePosted on 08 Oct 2024, this text provides information on Miscellaneous in Community related to Community. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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