Reference point: pp. 177-9, 183-6.
reference-type: Journal Article
author: Levitt, Steven D.
year: 2004
title: Understanding Why Crime Fell in the 1990s: Four Factors that Explain the Decline and Six that Do Not
journal: Journal of Eonomic Perspectives
volume: 18
number: 1
pages: 163–190
otx-key: Levitt-2004