"Residential segregation and racially biased policing" (abstract).
"Race, trust and social capital" (abstract). Summer paper for the Tepper School of Business; First paper for Heinz College, School of Public Policy. Also see "E Pluribus Unum: Diversity and Community in the Twenty-first Century" by Robert Putnam.
"Reference dependent ambiguity weighting" (rough draft). Also see Ellsberg's original manuscript and Fox and Tversky. The data for this paper are available upon request.