After decades of population declines, cities are adding population more rapidly than suburbs for the first time in nearly a century, as trendy middle-class neighborhoods continue to grow in number and size across areas that more affluent Americans once considered places to avoid. Yet research tells us that American cities continue to exhibit high levels of neighborhood inequality and poverty, especially for racial minorities. My research seeks to understand these two seemingly contradictory trends by examining how gentrification unfolds over time. Do neighborhoods gentrify at the same pace or to the same degree? Does gentrification spread evenly into its adjacent disinvested neighborhoods? If not, what factors influence these differences – leaving some urban areas mired in extreme poverty?

My research with sociologist and SSN Scholar Robert Sampson examined these issues in a study of Chicago neighborhoods. We define gentrification as the reinvestment and renewal of previously debilitated urban neighborhoods that occurs as middle- and upper-middle-class residents move in. To measure neighborhood change, we went beyond traditional sources of Census data to use information on the location of institutions and urban amenities, police data, community surveys, and – most innovative of all – visual information from Google Street View. The visible streetscape of neighborhoods provides direct indicators of change, such as new construction, rehabilitation, and beautification efforts. By assessing the presence of our various indicators of gentrification for nearly 2,000 blocks, we were able to measure degrees of gentrification for neighborhoods of varying racial composition. Additional research I have done also probes the impact of immigration. more...