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・ Price gouging
・ Price Hartstonge
・ Price Hill
・ Price Hill, Boone County, West Virginia
・ Price Hill, Cincinnati
・ Price Hill, Fayette County, West Virginia
・ Price Hill, Monongalia County, West Virginia
・ Price Hill, West Virginia
・ Price Increase and Famine Resistance Committee
・ Price index
・ Price Induction
・ Price intelligence
・ Price Island
・ Price King
・ Price Lake (Whatcom County, Washington)
Price level
・ Price limit
・ Price look-up code
・ Price markdown
・ Price mechanism
・ Price Medal
・ Price Memorial Hall
・ Price Mill, Virginia
・ Price Nunatak
・ Price of anarchy
・ Price of fairness
・ Price of Fame
・ Price of Glory
・ Price of gold
・ Price of Life


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Price level : ウィキペディア英語版
Price level
The general price level is a hypothetical daily measure of overall prices for some set of goods and services (the consumer basket), in an economy or monetary union during a given interval (generally one day), normalized relative to some base set. Typically, the general price level is approximated with a daily price ''index'', normally the Daily CPI. The general price level can change more than once per day during hyperinflation.
== Theoretical foundation ==

The classical dichotomy is the assumption that there is a relatively clean distinction between overall increases or decreases in prices and underlying, “nominal” economic variables. Thus, if prices ''overall'' increase or decrease, it is assumed that this change can be decomposed as follows:
Given a set C of goods and services, the total value of transactions in C at time t is
:\sum_ (p_\cdot q_)=\sum_ (p'_)\cdot q_ )=P_t\cdot \sum_ (p'_\cdot q_)
where
:q_\, represents the quantity of c at time t
:p_\, represents the prevailing price of c at time t
:p'_ represents the “real” price of c at time t
:P_t is the price level at time t
The general price ''level'' is distinguished from a price ''index'' in that the existence of the former depends upon the classical dichotomy, while the latter is simply a computation, and many such will be possible regardless of whether they are meaningful.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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