Before revision: Abortion The legalized abortion and crime effect popularized by Freakonomics coauthor Steven Levitt posits that the drop in violent crime is due to fewer children being born to parents who were unwilling or unable to care for them.
After revision: Abortion The legalized abortion and crime effect popularized by Freakonomics coauthor Steven Levitt posits that the drop in violent crime in the United States correlates with the legalization of abortion in the Supreme Court ruling on Roe v Wade in 1973, due to fewer children being born to parents who were unwilling or unable to care for them.