Professor Heo is an anthropologist of religion, media, and economy.  Her research and teaching at the University of Chicago's Divinity School covers a range of topics related to the critical study of global Christianities in the modern world. These topics explore the intersection of everyday religious practices with colonial and national institutions of rule, along with political economies of development and globalization.

Professor Yamaguchi is interested in statistical models for social data and mathematical models for social phenomena, the life course, rational choice, exchange networks, stratification and mobility, demography for family and employment, and process of drug use progression. His current research focuses on models of exchange networks and women's occupational careers in Japanese society.