This does not explain long established cities such as Baltimore. They have driven all the high earners out through a combination of high taxes and lack of serv

This does not explain long established cities such as Baltimore. They have driven all the high earners out through a combination of high taxes and lack of services. The high earners pay most of the taxes, so now they're just stuck. From what I can tell, cities have very poor cost control, and regularly pay platinum prices for lead. And they end up not even getting lead.