noun
Laspeyres index
Economic term for a price index using base-period quantities as weights. Used in statistics and economic analysis.
消費者物価指数の計算にはラスパイレス指数がよく使われる。
The Laspeyres index is often used to calculate the Consumer Price Index.
The Paasche index uses current-period quantities as weights, while the Laspeyres index uses base-period quantities.
Named after the German economist Étienne Laspeyres. The term is a direct loan from English 'Laspeyres index'.