here would have been a fundamental shift post WWII and throught the 60's / 70's to average household income being made up of more than one income. That wont ever return back to a 90 year median. And i would say for that reason neither would housing.
I'm not saying affordability is any better, but returning to old time medians no, that platform has shifted IMO.
..but only in Australia of course. Like the old saying goes, 'Australia, leading the way in dual income households since 1970'.
If the median household income is bolstered by dual incomes, then all things being equal (same size house), you would expect the median house price:household income ratio to go down. I cannot get my head around why you think a dual income household would increase the ratio. Surely you're confusing things with median individual wage. Houses are not the same size as before of course, and, I'd hazard a guess they've kept pace with the rising median household income (which already factors in the dual income).