There should be small print on “Welcome to Chicago” signs – something along the lines of “businesses and innovators not actually welcome.” With its recent, growth-killing hike of the minimum wage and its ever-looming $20 billion pension hole, the Windy City finds itself at a major competitive disadvantage. Mayor Rahm Emanuel and his Department of Finance just made matters worse with the introduction of new tax rules that will notably increase the cost of using popular streaming services like Netflix , Hulu, and Spotify. Desperate for new revenue to fill its dwindling coffers, Chicago is applying a 9 percent tax...