The economy of NYC is much less diversified than it was say 20 years ago or in the postwar period.<p>Those corporate HQs used to come with thousands of workers -- now more likely a couple floors of folks supporting the CEO. A lot of residential construction is funded by capital flight and shady political lobbying that helped get 2&#x2F;3 top state leaders convicted of corruption charges.<p>Still a great city, but not the economic behemoth that it was.