This paper extends Savage's subjective approach to probability and utility from decision problems under exogenous uncertainty to choice in strategic environments. Interactive uncertainty is modeled both explicitly, using hierarchies of preference relations, the analogue of beliefs hierarchies,...

Risikomanagement erscheint zunächst als originär betriebswirtschaftliches Sujet. Globale Krisen wie die internationale Finanzkrise, die COVID-19-Pandemie oder der russische Angriffskrieg sowie die daraus folgenden energiepolitischen Fragen zeigen jedoch, dass der staatliche Umgang mit Risiken...

We propose a class of dynamic models that capture subjective (and hence unobservable) constraints on the amount of information a decision maker can acquire, pay attention to, or absorb, via an Information Choice Process (ICP). An ICP specifies the information that can be acquired about the...

This paper extends choice theory by allowing for the interaction between cognitive costs and imitative dynamics. The authors experimentally investigate the role of imitation when participants face a task which is costly in cognitive terms. In order to disentangle different choice dynamics, they...

Die Einführung standardisierter Basisinformationsblätter zu Beginn des Jahres 2018 zielt darauf ab, die Eigenschaften verpackter Anlageprodukte für Kleinanleger/-innen und Versicherungsanlageprodukte (PRIIP) verständlich und vergleichbar zu machen. Die derzeitigen Regulierungsstandards...

This paper studies a two-person trading game in continuous time that generalizes Garivaltis (2018) to allow for stock prices that both jump and diffuse. Analogous to Bell and Cover (1988) in discrete time, the players start by choosing fair randomizations of the initial dollar, by exchanging it...

Considerable evidence shows that people have optimistic beliefs about future outcomes. I present an axiomatic model of wishful thinking (WT), in which an endowed alternative, or status quo, influences the agent's beliefs over states and thus induces such optimism. I introduce a behavioral axiom...