No, "market distortion" is something else.
This should clarify.....
https://www.investopedia.com/terms/m/marketdistortion.asp
Regarding real estate, subsidizing ownership (interest & property taxes) will....
- Increase the ability of the buyer to pay a higher price.
- Incentivize borrowing more.
- Increase prices because of increased demand.
- Give federal subsidies to locales with high property taxes.
I'm not proving anything...just giving observations & understanding from having been in the business for decades.
The bubble is exacerbated by other factors....
- Institutionalized inflation induces homeowners to treat their home as an investment which is a hedge against inflation. There's a widespread tendency to borrow as much as they can to buy as much as they can because this maximizes their return. This is because the loan amount doesn't increase, but the home's value does, thus their equity increases.
- Capital gains taxes are waived (up to a limit) so that profit is tax free.
- The Association Of Realtors has very effective propaganda about the desire & financial advantages of home ownership.
- Government created Fannie Mae & Freddie Mac to provide highly leveraged low interest loans, thereby encourage maximal borrowing.
I'll wager they didn't sound the alarm for the last one either.
You're welcome to disagree.
The percentage is only one question.
But given a particular percentage, there's still the issue of how to arrive at it.
Different ways provide different incentives & disincentives.
I'd prefer to incentivize earning, & disincentivize over-buying of homes.
We'll agree to disagree about whether the tax code changes are an improvement.