Cities are among the best examples of complex systems. The adaptive components of a city, such as its people, firms, institutions, and physical structures, form intricate and often non-intuitive interdependencies with one another. These interdependencies can be quantified and represented as...

We analyze how a region’s industrial structure affects its productivity and its resilience to shocks. Using co-occurrence analysis, we construct an interdependence network of U.S. industries. For each U.S. metropolitan area, we then calculate an aggregate metric of this network called economic...

Urban science seeks to understand the fundamental processes that drive, shape and sustain cities and urbanization. It is a multi/transdisciplinary approach involving concepts, methods and research from the social, natural, engineering and computational sciences, along with the humanities. This...

As cities grow in size and density, why do some “ignite” into global engines of innovation while others evolve instead into slums? To address this question we develop a view of urban development as an analogy to stellar evolution. Typical stellar gas clouds grow in mass, eventually reaching...