Alternative Explanations for the Low Crime Rate

1) Sentencing guidelines adopted by the federal and state governments incapacitated a larger fraction of the male population. The number of downward deviations from guidelines has not grown much. The making of guidelines discretionary for judges took place 5 years ago. It usually takes 10 years for a law to have its full impact. This factor should be assessed in 5 more years.

2) Obesity.

3) Video Addiction.

4) Marijuana consumption.

5) More sex, at a younger age.