Demand for social interactions: Evidence from the restaurant industry during the COVID‐19 pandemic
研究美国解封后新冠疫情对餐饮业的影响，发现高社交指数连锁餐厅受病例增加冲击更大，但随疫苗接种恢复更快；市中心餐厅需求恢复快于郊区。
Abstract We study the heterogeneous impacts of COVID‐19 on restaurants in the postlockdown United States, from lens of social interactions. We use the data structure of chain restaurants to disentangle restaurant attributes such as food and service types (which vary across chains) and local market conditions such as infection risks (which vary with each establishment's geographical location). We find that visits to chains with higher social indices experienced larger drops as local new cases increased in 2020, but also faster recovery later when vaccination programs expanded. Moreover, demand for restaurants in city centers recovered faster than demand for those in suburbs.