Eli Fenichel is the Knobloch Family Professor of Natural Resource Economics at Yale School of the Environment and an EGC affiliate. His research approaches natural resource management and sustainability as a portfolio management problem by considering natural resources as a form of capital. He is interested in how people can and do allocate natural resources and natural resource risks through time.  This leads to a strong interest in feedbacks among humans, ecosystems, and the management of coupled ecological-economic processes. Exploring the economic measurement of and accounting for natural resources is central to his research, and he continues to ask critical questions around human behavior and the dynamics of infectious diseases. Fenichel's research is applied in a wide variety of systems including natural capital valuation, fisheries, infectious disease, groundwater, tropical forests, and grasslands.