Showing 1 - 10 of 84
Estimates of agents' risk aversion differ between market studies and experimental studies. We demonstrate that the estimates can be reconciled through consistent treatment of agents' tendency for narrow framing, regarding integration of background wealth as well as across risky outcomes: Risk...
Persistent link: https://www.econbiz.de/10009295788
This paper investigates how welfare losses for facing risks change as a function of the number of risk exposures. To that aim, we define the risk apportionment of order n (RA-n) utility premium as a measure of pain associated with facing the passage from one risk to a riskier one. Changes in...
Persistent link: https://www.econbiz.de/10011626244
Quantum decision theory (QDT) is a recently developed theory of decision making based on the mathematics of Hilbert … decision making. QDT describes a decision maker's choice as a stochastic event occurring with a probability that is the sum of … subjectivity on decision makers, the quarter law. We examine individual and aggregated (group) data, and find that the results are …
Persistent link: https://www.econbiz.de/10011514496
We present the first calibration of quantum decision theory (QDT) to an empirical data set. The data comprise 91 …. The prediction of choice reversal is then refined by introducing heterogeneity between decision makers through a … differentiation of the population into two similar sized groups in terms of "over-confident" and "contrarian" decision makers. This …
Persistent link: https://www.econbiz.de/10011516615
We propose a new parametrization of Quantum Decision Theory (QDT), based on Rank Dependent Utility Theory (RDU). Using … experimental data made of choices between pairs of lotteries, we compare QDT with "classical" decision theories, RDU and Cumulative … decision makers as either RDU, RDU-based QDT, CPT or CPT-based QDT. Our major findings are the following: the quantum …
Persistent link: https://www.econbiz.de/10012612940
We assess the ability of different risk profiling measures to predict risk taking along a multi-stage decision process …-assessed risk tolerance measures are not suitable for predicting risk taking in any stage of the decision process. Among the …
Persistent link: https://www.econbiz.de/10011874728
We consider dynamic sublinear expectations (i.e., time-consistent coherent risk measures) whose scenario sets consist of singular measures corresponding to a general form of volatility uncertainty. We derive a càdlàg nonlinear martingale which is also the value process of a superhedging...
Persistent link: https://www.econbiz.de/10008797677
This paper argues that observations of non-stationary choice behavior need not necessarily imply specific properties of the individual's discount function. As we show, the observed quot;anomaliesquot; in intertemporal choice can alternatively be explained by an individual's perception of the...
Persistent link: https://www.econbiz.de/10003550665
This paper analyzes optimal prevention in a situation of multiple, possibly correlated risks. We focus on probability reduction (self-protection) so that correlation becomes endogenous. If prevention concerns only one risk, introducing a second exogenous risk increases the level of prevention...
Persistent link: https://www.econbiz.de/10010256952
Extensions of expected utility theory are sensitive to the tail behavior of the portfolio return distribution and may not be approximated reliably through higher-order moment expansions. We develop a novel approach for model risk assessment based on a projection method and apply it to portfolio...
Persistent link: https://www.econbiz.de/10011937102