The House Price Index (HPI, see Italian IPAB) measures the evolution of market prices of all residential properties that are purchased by households ( [...]

The House Price Index (HPI, see Italian IPAB) measures the evolution of market prices of all residential properties that are purchased by households (flats, detached houses, terraced houses, etc.), both new and existing, independently if bought for own-occupancy or as an investment. [<<<]

Weight of eache stratum is proportional to its importance on the total expenditure of households to [...]

Weight of eache stratum is proportional to its importance on the total expenditure of households to buy houses. Weights are updated yearly and are estimated on the basis of the same data base used for processing price information. [<<<]