Method for determining house price indices
US11288690B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2010 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Oct 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q50/16
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A method for estimating a real estate price index based on a repeat sales model. The method includes the steps of eliminating corrupt portions of data used to determine price indices; regressing a difference in a log price of a second sale minus a log price of a first sale for a property on a set of dummy variables, eliminating the observations with zero residuals for estimating the dispersion function; using a quadratic formula to model a dispersion of residual values with respect to time interval; using the quadratic formula to solve for a dispersion for each time interval starting with a minimum positive value; determining a minimum dispersion value that is a value calculated from the quadratic formula; determining a maximum dispersion value that is calculated from the quadratic formula for each time interval starting with a minimum positive value, wherein the dispersion values are prevented from decreasing with increasing time intervals; repeating the step of regressing using the inverse of the square root of fitted values from the quadratic formula as weights; identifying and selecting the time periods and associated data for estimating a price index that covers a particular t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.