Dillenberger, David, and Uzi Segal. “Recursive Ambiguity and Machina's Examples”. Boston College Working Papers in Economics 800, 2012.
Machina (2009, 2012) lists a number of situations where standard models of ambiguity aversion are unable to capture plausible features of ambiguity attitudes. Most of these problems arise in choice over prospects involving three or more outcomes. We show that the recursive non-expected utility model of Segal (1987) is rich enough to accommodate all these situations.