[pekk]

Violent crime is decreasing, period. It is spurious (if not intentionally misleading) to suggest that this correlates in a meaningful way with changes in poverty.

[JoeAltmaier]

Yes, recently an article was posted here (WSJ) that correlated unleaded gasoline with violent crime. That's actually believable.

[morpher]

IIRC, Freakanomics had a section correlating legalized abortion with a drop in crime ~18 years later. Also plausible. But, of course, not necessarily causal.