Ceorana Department of State Human Development Index

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The Ceorana Department of State Human Development Index, or CHDI is a formula developed by the Ceorana Department of State to rank nations by their "human development". The formula is still in a beta stage, so Ceorana is the only nation with an "official" number, although the CDOS has said that other nations may use the formula as they wish.

The Formula

The CHDI is calculated in three parts, the first two helping to determine the third. Since NationStates forbids nations to tell other nations statistics such as GDP, literacy rate and life expectancy, the CHDI makes educated guesses using numbers that are given.

The first part is the GDP index:

log(GDP per Capita) - log(300) / log(50,000) - log(300)

The second part is the Education index:

log(Education spending/(0.2*Population))/log(100000)

The last part is the Life Expectancy index:

(life expectancy - 25) / (85 - 25)

Life expectancy is calculated as:

80 * (average of GDP and Education indices) + Healthcare spending per capita / 100

Life expectancy cannot go above 90 years.

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