"It has created the aura of confidence that Detroit is now going to come back in a major way, and this is what attracts other investors," said Mark Rosentraub, an urban planning professor at the University of Michigan. "We audit everything they do and as of July 31, the total economic impact was $1.563 billion within the state. They've already written checks for $926 million for a project that was anticipated to cost $450 million. People around the country ask me, 'What are they building for $1 billion?' And I say, 'Wait until you see it."