A column in the NYT Upshot blog cited a study of infant mortality appearing in the May issue of the American Economic Journal: Economic Policy. In Why Is Infant Mortality Higher in the United States Than in Europe?, the authors account for inconsistent reporting practices across countries, and find that mortality for newborns (less than one month old) in the U.S. is not significantly greater than in four comparison countries in Europe. However, the U.S. still lags behind in postneonatal mortality (age 1-12 months), mostly because outcomes are much worse for American families with low socioeconomic status.