Showing 1 - 10 of 10
We provide a new characterization of AGM belief revision in terms of a Kripke-Stalnaker-Lewis semantics. We consider pointed frames consisting of a set of states, a distinguished state interpreted as the actual state, a Kripke belief relation and a Stalnaker-Lewis selection function. Adding a...
Persistent link: https://www.econbiz.de/10014474493
We provide a new characterization of both belief update and belief revision in terms of a Kripke-Lewis semantics. We consider frames consisting of a set of states, a Kripke belief relation and a Lewis selection function. Adding a valuation to a frame yields a model. Given a model and a state, we...
Persistent link: https://www.econbiz.de/10014474494
We consider decision problems under complete ignorance and extend the minimax regret principle to situations where, after taking an action, the decision maker does not necessarily learn the state of the world. For example, if the decision maker only learns what the outcome is, then all she knows...
Persistent link: https://www.econbiz.de/10012655890
Is it possible to obtain an objective and quantifiable measure of risk backed up by choices made by some specific groups of rational investors? To answer this question, in this paper we establish some behavior foundations for various types of VaR models, including VaR and conditional-VaR, as...
Persistent link: https://www.econbiz.de/10011132898
We consider a basic logic with two primitive uni-modal operators: one for certainty and the other for plausibility. The former is assumed to be a normal operator (corresponding - semantically - to a binary Kripke relation), while the latter is merely a classical operator (corresponding -...
Persistent link: https://www.econbiz.de/10011936494
In the history of economic thought, Shackle was one of the representative critics about probability based economic … probability. In 1980s, the potential surprise is axiomatized by Katzner as Kolmogorov-styled measure defined on the &#x1d70e …
Persistent link: https://www.econbiz.de/10014480721
generally guided by call-put option pricing models - which rely on an ergodic notion of probability that conforms to a normal … distribution function. This paper considers critiques of the above models, which include Keynes's Treatise on Probability (1921 … of probability. …
Persistent link: https://www.econbiz.de/10012142965
local municipalities do not have a higher probability of getting work early after arrival. …
Persistent link: https://www.econbiz.de/10012654317
observe that a decision maker is unaware of an event if and only if her choices reveal that the event is null and the negation … of the event is null. Moreover, we characterize impersonal expected utility that is behaviorally indistinguishable from … awareness-dependent subject expected utility and assigns probability zero to some subsets of states that are not necessarily …
Persistent link: https://www.econbiz.de/10010282109
graphing tools are used, such as, probability paper and different specifications of exponential functions representing … cumulative probability distributions. The argument is that traditional time-series analysis implies a given universe, usually …
Persistent link: https://www.econbiz.de/10010288058