When I read the title, I was thinking there is another tool. That tool might be homelessness. The homeless do not care after all whether they sleep in a posh up

When I read the title, I was thinking there is another tool. That tool might be homelessness. The homeless do not care after all whether they sleep in a posh uptown or a run down ghetto. If there are enough of them opportunity levels would surely equalize as median income of inhabitants averages out to zero.