they know more about, even when their beliefs are held constant. (They are averse to "ambiguity", or uncertainty about … probability.) We review evidence, recent theoretical explanations, and applications of research on ambiguity and SEU. …

discounting, it mis-estimated climate risk, possibly hugely. Given the uncertainty about estimating the SCC, the note concludes by …This note considers the treatment of risk and uncertainty in the recently established social cost of carbon (SCC) for …

discounting, it mis-estimated climate risk, possibly hugely. Given the uncertainty about estimating the SCC, the note concludes by …This note considers the treatment of risk and uncertainty in the recently established social cost of carbon (SCC) for …

ambiguity averse relation. First, we define two notions of more ambiguous with respect to such a class. A more ambiguous (I) act … makes an ambiguity averse decision maker (DM) worse off but does not affect the welfare of an ambiguity neutral DM. A more … ambiguous (II) act adversely affects a more ambiguity averse DM more, as measured by the compensation they require to switch …

We examine a variety of preference-based definitions of ambiguous events in the context of the smooth ambiguity model … ambiguity model, we show that Ghirardato and Marinacci (2002) would identify the same set of ambiguous and unambiguous events as … more interesting source is that these two definitions can confound non-constant ambiguity attitude and the ambiguity of an …