Information about Price Level

The price level is a kind of weighted average of the prices of all goods and services for an economy. A commonly used measure is a consumer price index, which is one particular type of price index. Price indexes are typically constructed to have a relative value of 100 (or 1.00) in a specific year called the base year.

In economics, inflation (or the inflation rate) is measured by the percentage increase in the price level per year. Similarly, a negative rate of inflation is referred to as deflation.
See weight function for the continuous case.


The weighted mean, or weighted average, of a non-empty list of data



with corresponding non-negative weights


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A good or commodity in economics is any object or service that increases utility, directly or indirectly, not to be confused with good in a moral or ethical sense (see Utilitarianism and consequentialist ethical theory).
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Service can refer to:
  • Public services, services carried out with the aim of providing a public good
  • A penetrant, as defined by a building code
  • Service (Systems Architecture), the provision of a discrete business or technology function within a systems environment; i.

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economy is the system of human activities related to the production, distribution, exchange, and consumption of goods and services of a country or other area.

The composition of a given economy is inseparable from technological evolution, civilization's history and social
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A consumer price index (CPI) is an index number measuring the average price of consumer goods and services purchased by households. It is one of several price indices calculated by national statistical agencies. The percent change in the CPI is a measure of inflation.
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A price index is a numerical time series measure designed to help compare how the prices of some class of goods and/or services, taken as a whole, differ between time periods or geographical locations. In the latter case, these are known as purchasing power parity measures.
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Economics is the social science that studies the production, distribution, and consumption of goods and services. The term economics comes from the Greek for oikos (house) and nomos (custom or law), hence "rules of the house(hold).
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Inflation is measured as the growth of the money supply in an economy, without a commensurate increase in the supply of goods and services. This results in a rise in the general price level as measured against a standard level of purchasing power.
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Deflation is a decrease in the general price level over a period of time. Deflation is the opposite of inflation. For economists especially, the term has been and is sometimes used to refer to a decrease in the size of the money supply (as a proximate cause
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