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IDENTITY TEST

Statistics Directorate    
Definition:
A test that may be used under the axiomatic approach which requires that if the prices remain unchanged between the two periods (that is, the sets of prices are identical) the price index should equal unity.

Also known as the “constant prices test”.

Source Publication:
ILO, IMF, OECD, Eurostat, UNECE, World Bank, 2004, Producer Price Index Manual: Theory and Practice, International Monetary Fund, Washington DC.

Hyperlink:
http://www.imf.org/external/np/sta/tegppi/index.htm

Statistical Theme: Prices and purchasing power partities

Created on Tuesday, February 18, 2003

Last updated on Friday, July 08, 2005