wholesale price index UK US noun [C, usually singular] (ABBREVIATION WPI) ECONOMICS
► a list of some basic wholesale prices that shows how they change over time, used to measure inflation: »
Year-on-year inflation, measured by the wholesale price index, is currently 3%.
→ Compare CONSUMER PRICE INDEX(Cf. ↑consumer price index), RETAIL PRICE INDEX(Cf. ↑retail price index)
Financial and business terms. 2012.