I don't understand the author's argument. Is it "spiff up the 'poor' neighborhoods so the inhabitants will pay more property taxes?" When I look at the map, it looks like most of the city is lightly in the red and it has several extremely red areas which may drive most of the losses. What is driving those? Are they stadiums or large government facilities that aren't taxable? Or maybe middle-aged neighborhoods with se…
Usually not. Low population density and far from city center is usually enough to make it very "red". See also, suburbs.