Leave the car at home, take the income. For years, City Observatory has calculated that Portland earns a billion dollar a year “green dividend” because it enables local residents to drive about 20 percent less than the typical urban American. Portland’s Mayor effectively argued that the city can earn an even bigger green dividend if it further reduces the amount of driving in the region
Andrew F. Haughwout, Donghoon Lee, Daniel Mangrum, Joelle Scally, and Wilbert van der Klaauw