Emily Oster on Pregnancy, Causation, and Expecting Better
EconTalk
00:00
The Challenge of Making Decisions in a Pregnancy Environment
There is a very clear problem with causality and it's in some ways almost insurmountable. The concern with having too much caffeine in pregnancy is that you might have a miscarriage, okay? So it's most of the issues involved. What about too much caffeine early in the pregnancy? You really don't see any increased risk of miscarriage up to that level. When you start looking at like eight cups of coffee, you see most much of the evidence does suggest that there's an increased risk of miscarriages.
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