| 单词 | Retail Price Index |
| 释义 | Retail Price Index = RPI An index of the prices of goods and services in retail shops purchased by average households, expressed in percentage terms relative to a base year, which is taken as 100. For example, if 1987 is taken as the base year for the UK (i.e. average prices in January 1987 = 100), then in 1946 the RPI stood at 7.4 and in September 2004 at 188.1. The RPI is compiled on a monthly basis and is based on 600 or so items in 11 groups. The prices of the goods are checked every month and individual items and groups are weighted to reflect their relative importance. Weightings are regularly updated by the Family Expenditure Survey. The RPI can be used to calculate the real change in earnings and expenditure by deflating financial data, and is one of the standard measures of the rate of inflation. In the USA and some other countries the RPI is known as the consumer price index. |
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