“Understanding why crime fell in the 1990s

Levitt, Steven D. (2004). “Understanding why crime fell in the 1990s: Four factors that explain the decline and six that do not.” The Journal of Economic Perspectives, 18 (1), 163-190.
In a 500 – 750 word response, discuss the factors that influenced, and did not influence, the crime rate drop in the 1990s. Include an assessment of the effect of the UCR and NIBRS programs.