The 2009-2010 Household Income and Expenditure Survey (HIES) is the third household expenditure survey conducted in Papua New Guinea (PNG), and is the second HIES conducted by the National Statistical Office (NSO) of PNG. The previous survey, the Household Survey of PNG, was conducted in 1996 by Unisearch and the Institute of National Affairs. The first household expenditure survey (the ‘HES’) was conducted in 1975-1976 by the NSO. It remains the source of the expenditure weights of theConsumer Price Index. 

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