“…The ex post mechanism: financial consequences After a health shock, individuals with high financial risk exposure may experience substantive OOP medical expendituresa common experience among older adults (Smith, 1999;Meara et al, 2004;Paez et al, 2009;De Nardi et al, 2010;Babiarz et al, 2013;Paccagnella et al, 2013). Before the health shock, individuals are unlikely to know the type, scope and total costs of medical treatments made necessary by a given condition.…”