Again, what motivates an individual to buy or sell? The seller might tell you they are downsizing, moving, want to have a newer, smaller, larger home. But can we quantify that readily? Lots of empty nesters don't need 5 bedrooms. People retire or move (like they are from CA) due to high taxes. Or like oil people move out or into W. Texas and N. Dakota, due to changes in the job market. People are moving to Atlanta, N. Dallas, and NW Arkansas because jobs are plentiful and prices are not falling. But to quantify the individual transaction is a joke.
My SIL just sold her house. In 4 years, she will make a 50% return because of housing demand within easy drive of Walmart headquarters and hundreds of vendors. Before buying that she sold a house at least that good that was 15 years old in Joplin MO and did little more than get her money back. The market there is much less active. That same house would have not even moved the needle if sold there instead of Centerton (a Bentonville suburb.)
There is no way to quantify accurately the motivations of seller and buyer. That's my story and I am sticking to it.
Factoid. "Staged" houses sell for more and AI is creating fake house furnishings to the MLS