has also written another interesting paper, which looks at the effects of mandatory waiting periods for abortion on the suicide rate among women. He finds that waiting periods drive the suicide rate down. The finding should not be overread: He has not made a conclusion one way or the other on whether waiting periods drive the abortion rate itself down. It may be that the waiting periods keep women from making a rash decision and then regretting it–even if they go through with it, they may have more confidence and fewer regrets. Or maybe the effect works some other way.