This document is a dissertation submitted by a student at Birkbeck College, University of London. The dissertation analyzes the behavior of emerging economies Brazil, China, and India within the G20 global governance forum. It uses historical institutionalism as a theoretical framework to understand how these countries' participation and compliance has changed over time. The dissertation argues that emerging economies' engagement and compliance with G20 agreements has increased as the forum's agenda expands beyond issues traditionally discussed within the G8. It analyzes the compliance performance of G20 members and finds emerging economies' preferences are converging with those of developed nations as they gain experience participating in global governance through the G20.