-of-sample predictability. To accurately predict risk, we develop Geometric Dispersion Theory (GDT), which is based on two asymmetric simple …Out-of-sample prediction is the ultimate validity test of risk models for which theoretical appeal and justifications … are irrelevant to the prediction results. Empirically, we show that all prominent risk models including Cumulative …

Women are stereotyped as more risk averse than men. Empirical and experimental investigations seem to support the … tries to integrate gender aspects into five main models from decision theory. We can show that according to the model …

We present the first calibration of quantum decision theory (QDT) to an empirical data set. The data comprise 91 …) the utility factor with a stochastic version of cumulative prospect theory (logit-CPT), and (b) the attraction factor with … a constant absolute risk aversion (CARA) function. This makes logit-CPT nested in our proposed parameterisation of QDT …