However, it would seem that anything less than a nation-wide pool of this sort would still cause some disparity.
As even state-wide would feel the affect of lower property values state to state.
But as a temporary bandage job, it has some merit.
However, any kind of funding method relies on the prosperity of the area which funding is drawn from.
Example: If you live in a high-income area, income tax funding for schools would cause the same issues as property tax.
Example: If you live in a high-income area, sales tax funding for schools would cause the same issues as property tax. Because higher-income persons almost invariably purchase more, as well.
So a pool method might be the best in any case.
Nation-wide, however, would produce far too massive a bureaucracy.
So state-wide or smaller would be best.
On a side note, is there not already a half-assed version of this idea in place?
As in, federal or state grants to boost a low-income school district?
At least, I think this is the case in some school districts, here in Pennsylvania.