UT, I couldn't agree more. And I agree, that double income is relevant.
As women were working far prior to the year 2000, why would you explain the massive increase of the ratio only occuring in the year 2000 (according roughly to attached graph) http://en.wikipedia.org/wiki/File:Real_Melbourne_House_Prices_1965_-_2010b.JPG
Shouldn't the ratio have been increasing steadily from the 50 or 60s, as women kept entering the workforce, and their wage parity kept reducing?
