Housing Price Index（HPI）
Housing price index (HPI) is constructed based on the so-called “Repeated Transaction Approach”, by collecting the transaction data of collective housing, including apartment flat, elevator condominium, high-rise building and studio, and terraced houses as well. All the transaction cases must be located in the same neighborhood with similar living environment. The mass housing price appraisal model will then be constructed via the adjustment of the housing characteristics and time-variated variables.