It also may be a self-stabilizing number. That is it may be that when people get under the 3x food income number, they make a positive change in their lives because it’s too hard to get by. Above that number they might make changes that make them look poorer like moving out of their grandparents house or having a child.
My point is that the War On Poverty may be chasing its tail.
Our anchor baby policy is an automatic poverty creator. Crime creator, welfare creator, school teacher creator..etc.