In China, controls on movement of people to urban areas have been more explicit, as they were in apartheid South Africa. This control has altered the trajectory of these cities and created an underclass without full access to relevant service. Logan is building on a long history of work examining population distribution and stratification in Chinese cities. His recent work uses both original surveys and Chinese census microdata to evaluate residential restructuring, disparities in access to housing between local urbanites and migrants, and the development of private housing markets.