Another related problem is that these suburbs were planned and financed on a cash accounting basis, rather than accrual. This means that tax burdens (or other m

Another related problem is that these suburbs were planned and financed on a cash accounting basis, rather than accrual. This means that tax burdens (or other municipal revenue methods) need to increase to cover the replacement of aging infrastructure as the relatively wealthy flee the old suburbs. This was a big factor in the Ferguson riots in 2014, IMO. The city had significant budgetary pressure that they managed through for-profit policing (traffic fines a big one), which intensified the racial divide there, and this is why the budgetary pressure arose.