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market with several future trading dates. We show that if a riskless asset is traded and the investor has a CARA utility then …
Persistent link: https://www.econbiz.de/10010317612
-invariant, scale-invariant and "wealthier-accept more". For three commonly used utility function families: CARA, CRRA and DARA …
Persistent link: https://www.econbiz.de/10010680377
We show that continuous models of stimulus-driven attention can account for skewness-related puzzles in decision-making under risk. First,we delineate that these models provide awell-defined theory of choice under risk. We therefore prove that in continuous - in contrast to discrete - models of...
Persistent link: https://www.econbiz.de/10011634366
Assuming a risk-neutral bank and assuming household utility to be exponential, we show how under information symmetry the covariance of income and loan repayments may explain higher household borrowings than in the case without default option. Under ex post information asymmetry and positive...
Persistent link: https://www.econbiz.de/10010420837
We establish a class of fully nonlinear conditional expectations. Similarly to the usage of linear expectations when a probabilistic description of uncertainty is present, we observe analogue quantitative and qualitative properties. The type of nonlinearity captures the agents sentiments of...
Persistent link: https://www.econbiz.de/10011282348
We establish a class of fully nonlinear conditional expectations. Similarly to the usage of linear expectations when a probabilistic description of uncertainty is present, we observe analogue quantitative and qualitative properties. The type of nonlinearity captures the agents sentiments of...
Persistent link: https://www.econbiz.de/10010477162
Assuming a risk-neutral bank and assuming household utility to be exponential, we show how under information symmetry the covariance of income and loan repayments may explain higher household borrowings than in the case without default option. Under ex post information asymmetry and positive...
Persistent link: https://www.econbiz.de/10010426364
We show that continuous models of stimulus-driven attention can account for skewness-related puzzles in decision-making under risk. First,we delineate that these models provide awell-defined theory of choice under risk. We therefore prove that in continuous - in contrast to discrete - models of...
Persistent link: https://www.econbiz.de/10011633501
In the continuous time-Merton-model the instantaneous stock proportions are inversely proportional to the investor’s local relative risk aversion γ. This paper analyses the conditions under which a HARA-investor can use this 1/γ-rule to approximate her optimal portfolio in a finite time...
Persistent link: https://www.econbiz.de/10008691999
The aim of this paper is to propose a model of decision-making for lotteries. The key element of the theory is the use of lottery qualities. Qualities allow the derivation of optimal decision-making processes and are taken explicitly into account for lottery evaluation. Our contribution explains...
Persistent link: https://www.econbiz.de/10005795967