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NCJ Number: 229474 Find in a Library
Title: Spatial Dependency of Crime Increase Dispersion
Journal: Security Journal  Volume:23  Issue:1  Dated:February 2010  Pages:18-36
Author(s): Jerry H. Ratcliffe
Date Published: February 2010
Page Count: 19
Document: HTML
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: In this article, a combination of the order of areal units from a dispersion analysis with a measure of the local level of spatial association is used to develop a tool that can identify clustered areas of emerging crime problems.
Abstract: A number of analytical techniques (such as the Gini coefficient and the Lorenz curve) can identify unequal distributions in crime frequency among sub-areas within a study region; however, these tools are often aspatial and say nothing about the relationships between spatial units. Using dispersion analysis, a technique that measures the relative dispersion of a crime increase across a region allows for the identification of particular spatial units that are sufficiently influential to drive up the overall jurisdictional crime rate. The identification of second-order spatial processes may be beneficial to police departments and crime prevention practitioners who are interested in the identification of statistically significant clusters of emerging crime hotspots. The process is demonstrated with an example of robbery rates in police sectors of Philadelphia, PA. 1 table, 4 figures, and 86 references (Publisher Abstract)
Main Term(s): Crime prevention planning
Index Term(s): Geographic distribution of crime; Geographic information systems (GIS); Mathematical modeling; Pennsylvania; Police management; Police planning
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