James Q. Wilson, "Culture, Incentives, and the Underclass," in Henry J. Aaron, Thomas E. Mann, and Timothy Taylor, editors, Values and Public Policy (Brookings Institution, 1994), pp. 54-80. This essay also appears in Don E. Eberly, editor, The Essential Civil Society Reader: The Classic Essays (Rowman and Littlefield, 2000), pp. 195-216.