"VIOLENT crime is on the retreat in most advanced economies. The latest US figures, for 2013, show that murder rates are lower now than in the early 1960s. In the same year, homicides in Japan hit a post-war low. In England and Wales the level of violence has dropped by 66 per cent since the latest peak in 1995.
In fact, big falls in homicides have happened in virtually all developed societies over the past 20 years. In the US, it is clear that the decline in violence extends to robbery, assault, rape, child maltreatment, domestic abuse and school bullying.
Why crime rose sharply in the second half of the 20th century before falling dramatically is open to debate. The causes are complex, and we are only starting to unravel them. It is also clear that in some nations homicide rates remain stubbornly high."
Read more: https://www.newscientist.com/article/mg ... z6sqLPqqSk
More info :
https://scholarship.law.umn.edu/faculty_articles/511/
https://theconversation.com/homicide-is ... why-125365
"Social scientists are not certain of the causes of this overall decline.
Policymakers, scientists and law enforcement officials have proposed several explanations for the dramatic reductions in crime during this period, including increased incarceration, receding drug markets, innovations in policing, improvements in the economy, increased immigration and the legalization of abortion.
Most of these explanations link the violence reduction to domestic policies of individual countries. Of course, this type of research is challenging, as many countries do not collect reliable data on key variables. For example, long-term data on gun ownership, drug use, the influence of organized crime and the efficacy of courts and policing institutions are not available for most countries.
[...]
Our models suggest to us that age plays a large role in this pattern. Age was the only factor we looked at that consistently predicted homicide increases and declines over an extended period of time."