Andrew Reid Bell is the inaugural Schleifer Family Professor of Sustainability in the Department of Global Development at Cornell University. His work draws on agent-based modeling tools, informed by field and behavioral experiments. In particular, he developed the MIDAS (Migration, Intensification, and Diversification as Adaptive Strategies) modeling framework (based on push-pull-mooring or PPM theory) in order to model migration as an emergent outcome among other livelihood adaptations, and has applied it to examine U.S.-Mexico cross-border flows as well as the impact of sea-level rise on coastal migration in Bangladesh.