Ricardo reis created the index SS oughta shift to with a back dating
Dynamic price index
Specifically includes the full impact of rising housing costs
"In the four years to 2004, the average annual rate of inflation according to the DPI was 7.4%, compared with an average increase of only 2.3% in the CPI. This was largely due to the rising price of homes. The true rate of increase in workers' cost of living is calculated to be just as high"
