International Trade and Social Connectedness

We use anonymized data from Facebook to construct a new measure of the pairwise social connectedness between 180 countries and 332 European regions. We find that two countries trade more with each other when they are more socially connected and when they share social connections with a similar set

我们使用来自Facebook的匿名数据，构建了180个国家与332个欧洲地区之间成对社会连通性（pairwise social connectedness）的新度量指标。研究发现，当两个国家的社会连通性更强，且拥有相似的社会连接集合时，它们之间的贸易往来更为频繁。