The inability of the Bayesian model to accommodate Ellsberg-type behavior is well-known. This paper focuses on another limitation of the Bayesian model, specific to a dynamic setting, namely the inability to permit a distinction between experiments that are identical and those that are only indistinguishable. It is shown that such a distinction is afforded by recursive multiple-priors utility. ...

It is not uncommon for large-scale safety-related engineering projects to make use of legacy systems that are either reused as is, or reused with modifications. Projects of this type can require the use of independent assessment as part of the regulatory approval process. Providing an independent assessment of such a project brings with it particular challenges related to issues of cross-accept...

In partial answer to a question posed by Arnie Miller [5] and X. Caicedo [2] we obtain sufficient conditions for an Lω1,ω theory to have an independent axiomatization. As a consequence we obtain two corollaries: If Vaught’s conjecture holds, then every Lω1,ω theory in a countable language has an independent axiomatization; every intersection of a family of Borel sets can be formed as the inters...