Originally Posted by
NineSpine
One of the strongest correlations with crime that we know of is the presence of lead. Another strong correlation is abortion access.
Canada and the US have mapped each other almost perfectly in crime rate as far as rise and fall. Our prison population began skyrocketing in the early 80s, but our crime decrease starts in the early 90s. That's a lot of lag. There wasn't even a slowdown in increase through the 80s. In fact, there was a rapid increase. So, your entire correlation is based on the idea that one number went up while another went down ten years later, with no closeness whatsoever in how those numbers map.
Canada has had a declining prison population since the 90s, and has seen a similar decline in crime.