There are lots of moving parts to this story. The tean pregnancy rate has declined by more than 60 % over the past quarter century. At the peak, there were one and a half million abortions a year compared to four million live births. In several states, as we noted earlier, have taken measures to limit or constrain abortion.
As the Supreme Court considers overturning Roe v. Wade, we look back at Steve Levitt’s controversial research on an unintended consequence of the 1973 ruling.