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Feature Articles

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      • Abstract
        The conventional approach of converting the values of Gross Domestic Product (GDP) and other expenditure aggregates into a common currency by means of market exchange rates does not produce statistics suitable for comparisons across economies. This is because market exchange rates may over- or under-estimate ...

References on Concepts and Methods

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Glossary of Terms

Term
Definition
Consumer Price Index (CPI)
The Consumer Price Index (CPI) measures the changes over time in the price level of consumer goods and services generally purchased by households. The year-on-year rate of change in the CPI is widely used as an indicator of the inflation affecting consumers.
CPI(A), CPI(B), CPI(C) and Composite CPI
Different series of CPIs are compiled by the Census and Statistics Department (C&SD) to reflect the impact of consumer price changes on households in different expenditure ranges. The CPI(A), CPI(B) and CPI(C) are compiled based on the expenditure patterns of households in the relatively low, medium and relatively high expenditure ranges respectively. A Composite CPI is compiled based on the overall expenditure pattern of all the above households taken together to reflect the impact of consumer price changes on the household sector as a whole.