Her research focuses on questions of migration and development in the Global South, particularly Southeast Asia. Since 2004 she has been traveling to Cambodia, where she has conducted mixed-methods research on questions of migration, rural livelihoods, microcredit, gender, and the environment. Recent work has been published in Development and Change, Migration Studies, Population Research and Policy Review, & Oxford Development Studies. Maryann is a founding board member of PEPY, an NGO working to promote education in Siem Reap.