The price of hiomes used to be dictated by personal incomes and had an average of 2-4 times yearly salary.
Then, it became based on what a person could borrow, not their income.
I've worked in in lending/banking/real estate for over 20 years and both of these quotes are jibberish
the price of home was never "dictated" by personal income.
saying it was based on what a person could borrow and not their income is nonsensical.
Qualifying for a loan used to require a down payment of at least 20% (that was slowly eroded to 0).
Qualifying for a loan used to require verification of income, source of down payment, and employment with a whole list of requirements on what is acceptable employment i.e. two years in the same line of work, etc.. (this slowly eroded to stated income for self employed and then stated income for wage earners to no income/no asset verification and no requirement to show employment)
Qualifying for a loan used to require strict debt to income ratios (again this slowly eroded to higher ratios and then simply no calculation of debt ratios).
The whole reason these credit guidelines became diluted was because of the deregulation of commodities which allowed the financial wizards on Wall Street to create a whole new class of unregulated securities which provided the cash to make these riskier and riskier loans (and everyone loved their high yield junk while it was paying out big returns)
There is plenty of blame to go around to all parties starting (IMO) with the person applying for the loan but I really put most of the blame on Wall Street. If you offer someone a loan with no requirement for down payment (or very little) and you throw out all traditional underwriting guidelines that were designed to protect lenders (and also to protect borrowers from their own stupidity and greed) then you (the banker) are most responsible.
I've had many mortgages in my life and, being self employed, I've always been very conservative on borrowing the smallest amount needed and always with fixed rates. The difference is that I understand my own finances as well as the "product" that I'm buying (i.e the loan) and unfortunately the average person does not have that level of understanding (though they could with some simple research).
I primarily blame Wall Street because they're the one's who changed the guidelines and underwrote these riskier and riskier loans. The retail borrower is to blame for being gullible and greedy but if it weren't for a source of funds their greed and gullibility would have been a moot point