Purchase Patterns, Socioeconomic Status, and Political Inclination
分析了两个国家数万人数月的信用卡交易记录，发现购买模式与社会经济地位、政治倾向等社会指标高度相关，可用于高时空分辨率下预测这些指标的演变。
Abstract This paper analyzes millions of credit card transaction records during several months for tens of thousands of individuals from two different countries. The study shows that, purchase patterns are strongly correlated with important societal indices such as socioeconomic status and political inclination. The results suggest the possibility of understanding and predicting the evolution of such societal indices from purchase behavioral patterns, potentially at high temporal and spatial resolutions.