Eili Klein is a mathematical biologist and PhD candidate in the Ecology and Evolutionary Biology Department of Princeton University. He is also a research associate at the Center for Disease Dynamics, Economics and Policy in Washington, DC. His research is focused on understanding the interplay between ecology and economics, and how human behavior impacts the evolution and spread of infectious diseases. In particular, he is focused on the evolution of resistance to antimicrobials, such as antibiotics and anti-malarial drugs, and how interventions to change people's incentives can change the rate of resistance evolution. Mr. Klein has published on the epidemiology of antimalarial drug resistance and trends in the incidence of methicillin-resistant Staphylococcus aureus within hospitals, as well as the need to incorporate simple economic principles of individual behavior and resource optimization into epidemiological models. Prior to starting at Princeton, he was a senior research assistant at Resources for the Future. He also earned a masters in international environmental policy from Johns Hopkins School of Advanced International Studies in 2005, and a bachelors in economics from Columbia University in 1998.