The retail price indices measure the cost-of-living of United Nations international staff stationed at specific duty stations relative to New York, the base of the United Nations post adjustment system, at the same index date.

In addition to the regular Retail Price Index (RPI) tables, ICSC also publishes the Retail Price Index with Details (RPID). The main advantage of the RPID over its predecessor (the RPI) is that it offers users the option of building a customized RPI index using selected expenditure components and weights.

Detailed explanations of the methods used to compute the indexes may be found on the ICSC Homepage at: https://icsc.un.org/secretariat/cold.asp?include=login. (registration and login required)