The original urban crisis of the 1960s and 1970s was a crisis of economic failure, spurred on by the movement of people, jobs, and industry to the suburbs; the hollowing out of city economics; and the concentration of poverty and economic disadvantage in urban centers. The New Urban Crisis is a crisis of success, brought on by the movement of affluent and educated people, and of knowledge and tech jobs, back to the urban center. – CityLab