Globalization and Pandemics
研究了全球化与流行病之间的关系，指出商务旅行促进贸易的同时也传播疾病，产生跨国流行病外部性，并分析了社会距离效应和个体行为反应对贸易的影响。
We provide theory and evidence on the relationship between globalization and pandemics. Business travel facilitates trade and travel leads to human interactions that transmit disease. Trade-motivated travel generates an epidemiological externality across countries. If infections lead to deaths, or reduce individual labor supply, we establish a general equilibrium social distancing effect, whereby increases in relative prices in unhealthy countries reduce travel to those countries. If agents internalize the threat of infection, we show that their behavioral responses lead to a reduction in travel that is larger for higher-trade-cost locations, which initially reduces the ratio of trade to output.