“price index”的概念、定义、翻译、参考文献-科学参考

price index

Statistics

A measure of the value of money in which the cost of a standard collection, or basket, of goods and services at some particular date is compared with the cost of the same basket at a base date. The basket is chosen to represent the expenditure of a typical household at the date under consideration.
Writing p_0j and p_nj as the prices at times 0 and n of the jth item in the basket, and q_0j and q_nj as the corresponding quantities of that item, the Laspeyres price index, suggested by Laspeyres in 1871, is the ratio $price index$ and the Paasche price index, suggested by Paasche in 1874, is the ratio $price index$ In 1922 Irving Fisher suggested using the geometric mean: $price index$ This is now known either as the Fisher index or as the ideal index. An alternative, variously known as the Bowley index, or the Marshall–Edgeworth index, is $price index$ See also retail price index.

Economics

An index number, or an aggregate measure, of the prices of goods in some given category. Consider good i. Let period 0 be the base period, period t the current period, and p_iτ‎ the price in period τ‎. The price index for good i is given by p_it/p_i0. This gives the index in ratio form and has a value of 1 in the base period. It is often multiplied by 100 to give a value of 100 in the base period. If a class of goods i = 1, 2,…, N is concerned, the price index is a ratio of the weighted average of their prices. The weights are the values of the goods purchased in some period. If q_iτ‎ is the quantity of good i in period τ‎, the base-weighted or Laspeyres price index at time t‎ is defined as

$p_{B} = \sum_{i = 1}^{N} p_{i t} q_{i 0} / \sum_{i = 1}^{N} p_{i 0} q_{i 0}$

and the current-weighted or Paasche price index at time t is defined as

$p_{C} = \sum_{i = 1}^{N} p_{i t} q_{i t} / \sum_{i = 1}^{N} p_{i 0} q_{i t} .$

Again these are in ratio form but can be multiplied by 100. Price indices can also be found for security prices or wage rates. See also consumer price index; retail price index.

单词	price index
释义	price index Statistics A measure of the value of money in which the cost of a standard collection, or basket, of goods and services at some particular date is compared with the cost of the same basket at a base date. The basket is chosen to represent the expenditure of a typical household at the date under consideration. Writing p_0j and p_nj as the prices at times 0 and n of the jth item in the basket, and q_0j and q_nj as the corresponding quantities of that item, the Laspeyres price index, suggested by Laspeyres in 1871, is the ratio $price index$ and the Paasche price index, suggested by Paasche in 1874, is the ratio $price index$ In 1922 Irving Fisher suggested using the geometric mean: $price index$ This is now known either as the Fisher index or as the ideal index. An alternative, variously known as the Bowley index, or the Marshall–Edgeworth index, is $price index$ See also retail price index. Economics An index number, or an aggregate measure, of the prices of goods in some given category. Consider good i. Let period 0 be the base period, period t the current period, and p_iτ‎ the price in period τ‎. The price index for good i is given by p_it/p_i0. This gives the index in ratio form and has a value of 1 in the base period. It is often multiplied by 100 to give a value of 100 in the base period. If a class of goods i = 1, 2,…, N is concerned, the price index is a ratio of the weighted average of their prices. The weights are the values of the goods purchased in some period. If q_iτ‎ is the quantity of good i in period τ‎, the base-weighted or Laspeyres price index at time t‎ is defined as $p_{B} = \sum_{i = 1}^{N} p_{i t} q_{i 0} / \sum_{i = 1}^{N} p_{i 0} q_{i 0}$ and the current-weighted or Paasche price index at time t is defined as $p_{C} = \sum_{i = 1}^{N} p_{i t} q_{i t} / \sum_{i = 1}^{N} p_{i 0} q_{i t} .$ Again these are in ratio form but can be multiplied by 100. Price indices can also be found for security prices or wage rates. See also consumer price index; retail price index.
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