Crime rates have been falling across the developed world for the last 30 years. I assume that's a decent proxy for teenage risk-taking behavior too. I wonder ho

Crime rates have been falling across the developed world for the last 30 years. I assume that's a decent proxy for teenage risk-taking behavior too. I wonder how much of this success is coincidental to broader social trends, rather than due to any particular policy or planned effort. I think we don't really know what's cause and effect if we don't try to measure these confounding factors.