Erin's research interests include Latin American politics, international development, and non-governmental organizations (NGOs) in the global south.  Her current project explores various attempts to "help" poor women in Guatemala, based on roughly two years of ethnographic research with loan-granting NGOs in rural Guatemala.  Her book project, Through Women's Eyes: The Everyday Practices and Experiences of Development views NGOs through the eyes of policymakers, development workers, and "beneficiaries" to uncover the tensions and contradictions that arise in these types of projects.  She challenges depictions of "beneficiaries" as passive recipients of development projects and demonstrates that empowerment and disempowerment may happen simultaneously.

Erin teaches classes on Latin American politics, social movements, and women/gender in developing countries, is on the board of the Center for Latino/a and Latin American Studies and is the head of the Center for the Study of Women in Society's Americas Research Interest (which explores gender across the Americas).