America is no longer a nation of red states and blue states. We are a nation of red neighborhoods and blue neighborhoods. That?s because of The Big Sort described by Bill Bishop in his new book of the same name. Bill says we are dangerously sorting ourselves according to our values, beliefs and lifestyles and while the overall result is that we have more choices than ever, our communities are also becoming significantly more segmented and specialized.

Susanne Justesen believes that the homogeneity Bill writes about threatens innovation and productivity. Her unusual approach to capturing the value of diversity works for major corporations and may just work for cities.