Dr. Linlin Fan is an applied economist with focus on food policy, food security and obesity. Dr. Fan studies the nature, causes and consequences of living in food deserts (low-income neighborhoods with limited access to supermarkets) and evaluates the welfare impact of policies expanding access to food deserts. Her research includes comparing food price indices that address both product heterogeneity and variety bias between food deserts and non-food deserts. She is also interested in analyzing the long-term peer effects and the impact of air pollution on obesity and other diet-related health problems.