“…Many caseload studies simply examine the incidence of programme participation, by modelling either the aggregate number of people or households receiving benefits (Wallace and Blank, 1999;Wilde et al, 2000;Kornfeld, 2002;Kabbani and Wilde, 2003;Ziliak et al, 2003;Mabli and Ferrerosa, 2010;Klerman and Danielson, 2011) or the incidence of receipt among individual households (Fraker and Moffitt, 1988;Keane and Moffitt, 1998;Currie and Grogger, 2001;Farrell et al, 2003;Haider et al, 2003;Huffman and Jensen, 2005;Hanratty, 2006;Ratcliffe et al, 2008). Other research considers programme entry separately from programme exit but examines these processes as simple bivariate outcomes (Blank and Ruggles, 1996;Gleason et al, 1998;Mills et al, 2001;Staveley et al, 2002;Cody et al, 2005;Ribar et al, , 2010Mabli et al, 2011).…”