“…Changes in household composition in situ are relatively rare (Hayes & Al‐Hamad, 1997; Jackson et al., 1991; Lichtenberg, MacNeill, & Mast, 2000; Mutchler & Burr, 1991; Pendry, Barrett, & Victor, 1999). Exceptions include several studies of incident intergenerational co‐residence (Al‐Hamad, Flowerdew, & Hayes, 1997; Mickus, Stommel, & Given, 1997; Roan & Raley, 1996; Speare, Avery, & Lawton, 1991; Worobey & Angel, 1990a), and life years of co‐residence (Schoeni, 1998).…”