International differences in interspousal health correlations
利用肺功能客观指标，发现欧洲各国夫妻间健康存在强正相关，但南欧的相关性远强于其他地区；早期健康、社会经济地位和地理子区域的婚姻匹配模式是解释这一差异的关键。
Using objective measures of lung function, we document strong positive associations in health within couples in all European countries but large and significant differences in this correlation within broad European regions, with Southern Europe having by far stronger correlations than elsewhere. We analyze potential explanations for such differences, investigating the role of measures capturing current and past health behaviors, early life circumstances of each spouse, and measures capturing assortative mating in multiple dimensions. We show that marital sorting patterns by dimensions of early life health and socioeconomic position, as well as by geographical subregion within countries, are key to understanding the empirical patterns observed.