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15.2 Four of the principal price indices in the system of economic statistics—the PPI, the CPI, and the Export and Import Price Indices (XPI and MPI)—are well-known and closely watched indicators of macroeconomic performance.
The basic concept. 4.8 A price index allows the comparison of two sets of prices either over time (temporal indexes) or regions (spatial indexes) for a common item or group of items.
1. The Basket, Axiomatic and Stochastic Approaches to Index Number Theory Consumer Price Index Theory2 is a book about index number theory in general and the construction of a Consumer Price Index (CPI) in particular. This paper provides an overview of the various chapters.
1.1 A price index is a measure of the proportionate, or percentage, changes in a set of prices over time. A consumer price index (CPI) measures changes in the prices of goods and services that households consume. Such changes affect the real purchasing power of consumers’ incomes and their welfare.
The economic-theoretic approach to index numbers is also known as the functional approach to index numbers, since the approach postulates a functional relationship between observed prices and quantities for inputs as well as outputs.
The paper discusses basic index number theory that provides theoretical foundations for the construction of a Consumer Price Index. The following index number formulae are defined and compared: Laspeyres, Paasche, Fisher, Walsh, Lowe and Young. Fixed base and chained indexes are defined and compared.
often seen as advanced indicators of price changes throughout the economy, including changes in the prices of consumer goods and services. Definition Producer price indices measure the rate of change in prices of products sold as they leave the producer. They exclude any taxes, transport and trade margins that the purchaser may have to pay ...
