One of the things not mentioned by the article is that the city of Detroit has an income tax on people working in the city, unlike virtually all of the surround

One of the things not mentioned by the article is that the city of Detroit has an income tax on people working in the city, unlike virtually all of the surrounding cities. This is symptomatic of a wider dynamic, in which it actually costs more for companies and employees to work in the city of Detroit itself than in the surrounding areas. It isn't the cause of the decline, but it certainly doesn't help.