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PPP based economic valuation

PPPBasedEconomicValuation is a class of relations used to state international economic information in U.S. dollar amounts. The U.S. dollar amounts are derived from Purchasing Power Parity conversions of economic totals (e.g., GDP) given in local currency. This contrasts with a method of conversion based on currency exchange rates. The PPP method is used by the CIA World Fact Book for the purpose of presenting economic data for all countries covered. Their basis for PPP dollar price weights is the UN International Comparison Program (UNICP) and the work of Professors Robert Summers and Alan Heston of the University of Pennsylvania.

Relationships
Parents	relation	The Class of relations.There are two kinds of Relation: Predicate and Function. Predicates and Functions both denote sets of ordered n-tuples. The difference between these two Classes is that Predicates cover formula-forming operators, while Functions cover term-forming operators.
Instances	per capita GDP	(perCapitaGDP ?AREA ?AMOUNT) means that the Gross Domestic Product, on a per capita basis, for the GeopoliticalArea ?AREA is ?AMOUNT, calculated in U.S. dollars on a purchasing power parity basis. See PPPBasedEconomicValuation.
	per capitaGDP in period	(perCapitaGDPInPeriod ?AREA ?AMOUNT ?PERIOD) means that the Gross Domestic Product, on a per capita basis, for the GeopoliticalArea ?AREA is ?AMOUNT during the period indicated by ?PERIOD, calculated in U.S. dollars on a purchasing power parity basis. See PPPBasedEconomicValuation.
	real growth rate of GDP	(realGrowthRateOfGDP ?AREA ?RATE) means that the annual rate of growth in the Gross Domestic Product (GDP) for the GeopoliticalArea ?AREA is the fraction ?RATE, adjusted for inflation, with GDP calculated on a purchasing power parity basis. See PPPBasedEconomicValuation.
	real growth rate of GDP in period	(realGrowthRateOfGDPInPeriod ?AREA ?RATE ?PERIOD) means that the annual rate of growth in the Gross Domestic Product (GDP) for the GeopoliticalArea ?AREA is the fraction ?RATE in the period ?PERIOD, adjusted for inflation, with GDP calculated on a purchasing power parity basis. See PPPBasedEconomicValuation.
	sector composition of GDP in period	(sectorCompositionOfGDPInPeriod ?AREA ?SECTOR ?FRACTION ?PERIOD) means that in the GeopoliticalArea ?AREA, the economic sector ?SECTOR contributes the amount ?FRACTION to the Gross National Product during the TimeInterval indicated by ?PERIOD.
	sector composition ofGDP	(sectorCompositionOfGDP ?AREA ?SECTOR ?FRACTION) means that in the GeopoliticalArea ?AREA, the economic sector ?SECTOR contributes the amount ?FRACTION to the Gross National Product.
	sector value of GDP	(sectorValueOfGDP ?AREA ?SECTOR ?AMOUNT) means that for the GeopoliticalArea ?AREA, the economic sector ?SECTOR contributes ?AMOUNT to the Gross National Product, evaluated in U.S. dollars on a purchasing power parity basis. See PPPBasedEconomicValuation.
	sector value of GDP in period	(sectorValueOfGDPInPeriod ?AREA ?SECTOR ?AMOUNT ?PERIOD) means that for the GeopoliticalArea ?AREA, the economic sector ?SECTOR contributes ?AMOUNT to the Gross National Product during the TimeInterval indicated by ?PERIOD, evaluated in U.S. dollars on a purchasing power parity basis. See PPPBasedEconomicValuation.
	totalGDP	(totalGDP ?AREA ?AMOUNT) means that the value of all final goods and services produced within the GeopoliticalArea ?AREA is ?AMOUNT, in U.S. dollars, calculated on a purchasing power parity basis. This represents Gross Domestic Product (GDP). See PPPBasedEconomicValuation.
	totalGDP in period	(totalGDPInPeriod ?AREA ?AMOUNT ?PERIOD) means that the value of all final goods and services produced within the GeopoliticalArea ?AREA is ?AMOUNT in the period indicated by ?PERIOD, measured in U.S. dollars calculated on a purchasing power parity basis. (See PPPBasedEconomicValuation.) This is the Gross Domestic Product for ?AREA for a specified period.

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