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Existing models in stochastic continuous-time settings assume that beliefs are represented by a probability measure. As illustrated by the Ellsberg Paradox, this feature rules out a priori any concern with ambiguity. This paper formulates a continuous-time intertemporal version of...
Persistent link: https://www.econbiz.de/10005503965
This paper describes a pure-exchange, continuous-time economy with two heterogeneous agents and complete markets. A novel feature of the economy is that agents perceive some security returns as ambiguous in the sense often attributed to frank Knight. The equilibrium is described completely in...
Persistent link: https://www.econbiz.de/10005808127
Rational offender models assume that individuals choose whether to offend by weighing the rewards against the chances of apprehension and the penalty if caught. While evidence indicates that rational theory is applicable to acquisitive crimes, the explanatory power for gratuitous non-fatal...
Persistent link: https://www.econbiz.de/10004976861
A popular argument states that most of the diversification in a portfolio can be obtained with a rather small number of securities. In this paper we present three algorithms to approach the underlying NP-hard problem of portfolio optimization with a cardinality constraint. All three of these...
Persistent link: https://www.econbiz.de/10005537757
Bu çalışmada İMKB’de işlem gören hisse senetlerinin toplam riskleri, 1997-2004 dönemi esas alınarak piyasa riski, endüstri riski ve firma riski bileşenlerine ayrılmıştır. Toplam risk içinde piyasa riskinin ağırlığı kriz dönemlerinde artmakta, istikrar dönemlerinde...
Persistent link: https://www.econbiz.de/10005489619
Using a data set that provides unprecedented details on the stockholders of Swedish listed companies, we analyze whether investors take into account corporate governance when they select stocks. We identify the companies where shareholders’ value is less likely to be maximized by using the...
Persistent link: https://www.econbiz.de/10005423905
We examine in an experiment the causes, consequences and possible cures of myopic loss aversion (MLA) for investment behaviour under risk. We find that both, investment horizons and feedback frequency contribute almost equally to the effects of MLA. Longer investment horizons and less frequent...
Persistent link: https://www.econbiz.de/10005432667
In this paper the dynamic portfolio selection problem is studied for the first time in a dual utility theory framework. The Wang transform is used as distortion function and well diversified optimal portfolios result both with and without short sales allowed.
Persistent link: https://www.econbiz.de/10005405038
We propose a novel portfolio selection approach that manages to ease some of the problems that characterise standard expected utility maximisation. The optimal portfolio is no longer defined as the extremum of a suitably chosen utility function: the latter, instead, is reinterpreted as the...
Persistent link: https://www.econbiz.de/10005413052
Myopic loss aversion (MLA) has been established as one prominent explanation for the equity premium puzzle. In this paper we address two issues related to the effects of MLA on risky investment decisions. First, we assess the relative impact of feedback frequency and investment flexibility (via...
Persistent link: https://www.econbiz.de/10004968402