A new statistical analysis of Airbnb listings shows the short-term-rental service is growing worldwide, but suggests that many hosts don't stick with it. Intermittent commercial uses of residences could be seen in the planning context of "mixed use."
Donald Trump invokes the darkest days of urban decay and crime to appeal to his base. The facts speak to an urban triumph that has led to greater national prosperity and higher standards of living for tens of millions of Americans.
In honor of national Bike to Work Day, we post an article by Jason Severs looking at the ways in which the bicycle - "the next great technology platform" - is changing our physical environment and social interactions.