Legalization of abortion led to less unwontedness, therefore abortion led to lower crime. 15 or 20 years later, the mechanism was pretty simple. Unwonted children were more likely than average to engage in crime as they got older. The states that legalized abortion earlier didn't just get a five year head start on the legalization of abortion before reeved. They actually had many, many more abortions, a much higher abortion rate than the other states. New york and california are on the cutting edge. Cause, why? Well, they're all liberal, main so alaskad.