May 17, 2016 Forbes
Economics professor Emily Oster is quoted in an article about mothers buying breastmilk online based on the mantra and evidence-based research indicating "Breast is best". "It is not that the claims about benefits are completely made up. They are mostly based on some data. The trouble is that the evidence they are based on is often seriously biased by the fact that women who breastfeed are typically different from those who do not. Breastfeeding rates differ dramatically across income, education and race,” Oster wrote in FiveThirtyEight.