My research focuses on geographic disparities, particularly racial disparities in
housing and public health. Much of my research uses Geographic Information Systems (GIS)
to analyze spatial patterns.

Community Mapping

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Why Social Work Needs Mapping, Departmental Papers (SPP) (2007)
 

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Integrating and Distributing Administrative Data to Support Community Change (with Dennis P. Culhane), Departmental Papers (City and Regional Planning) (2005)
 

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Removing Barriers to the Use of Community Information Systems (with Mary L. Wernecke and Heather McKelvey), Departmental Papers (City and Regional Planning) (2005)
 

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Evaluating a Community Based Homelessness Prevention Program: A Geographic Information System Approach (with Yin-Ling I. Wong), Departmental Papers (SPP) (2001)
 

GIS Resources

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ArcGIS 9.3 manual (2007)
 

Housing

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Community Activists and University Researchers Collaborating for Affordable Housing: Dual Perspectives on the Experience (with David Koppisch), Departmental Papers (City and Regional Planning) (2005)
 

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Closing the Gap: Housing (un)Affordability in Philadelphia (with Dennis P. Culhane), Departmental Papers (City and Regional Planning) (2003)
 

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Predicting Housing Abandonment with the Philadelphia Neighborhood Information System (with Dennis P. Culhane, Tony E. Smith, and C. Dana Tomlin), Departmental Papers (City and Regional Planning) (2003)
 

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Comment on James R. Cohen’s “Abandoned Housing: Exploring Lessons from Baltimore” (with Dennis P. Culhane), Departmental Papers (City and Regional Planning) (2001)
 

Public Health

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A Cross‐Sectional Prevalence Study of Ethnically‐Targeted and General Audience Outdoor, Milbank Quarterly (2009)
 

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Clustering of Unhealthy Advertisements around Child-serving Institutions: A Three‐city, Health and Place (2009)
 

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Can Technology Be an Ally in the Fight against Childhood Obesity? (2008)
 

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Childhood Overweight and the Built Environment: Making Technology Part of the Solution Rather than Part of the Problem, The Annals of the American Academy of Political and Social Science (2008)
 

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Pennsylvania’s Fresh Food Financing Initiative, Journal of Public Health Management and Practice (2008)
 

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Urban History/Historical GIS

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Historical Redlining in Philadelphia website (2008)
 

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Mapping the Du Bois Philadelphia Negro website (2008)
 

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Placing History: How Maps, Spatial Data, and GIS are Changing Historical Scholarship (2008)
 

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Residential Security Maps and Neighborhood Appraisals. The Homeowners' Loan Corporation and the Case of Philadelphia, Departmental Papers (City and Regional Planning) (2005)
 

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Redlining and the Homeowners' Loan Corporation, Departmental Papers (City and Regional Planning) (2003)
 

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