Urban change involves transformations in the physical appearance and the social composition of neighborhoods. Yet, the relationship between the physical and social components of urban change is not well understood due to the lack of comprehensive measures of neighborhood appearance. Here, we...

Not-for-profit organizations play a critical role in the American economy. In health care, education, culture, and religion, we trust not-for-profit firms to serve the interests of their donors, customers, employees, and society at large. We know that such firms don't try to maximize profits,...

Conventional wisdom held that housing prices couldn’t fall. But the spectacular boom and bust of the housing market during the first decade of the twenty-first century and millions of foreclosed homeowners have made it clear that housing is no different from any other asset in its ability to...