TY - UNPD A1 - Jakusch, Sven Thorsten A1 - Meyer, Steffen A1 - Hackethal, Andreas T1 - Taming models of prospect theory in the wild? Estimation of Vlcek and Hens (2011) T2 - SAFE working paper series ; No. 146 N2 - Shortcomings revealed by experimental and theoretical researchers such as Allais (1953), Rabin (2000) and Rabin and Thaler (2001) that put the classical expected utility paradigm von Neumann and Morgenstern (1947) into question, led to the proposition of alternative and generalized utility functions, that intend to improve descriptive accuracy. The perhaps best known among those alternative preference theories, that has attracted much popularity among economists, is the so called Prospect Theory by Kahneman and Tversky (1979) and Tversky and Kahneman (1992). Its distinctive features, governed by its set of risk parameters such as risk sensitivity, loss aversion and decision weights, stimulated a series of economic and financial models that build on the previously estimated parameter values by Tversky and Kahneman (1992) to analyze and explain various empirical phenomena for which expected utility doesn't seem to offer a satisfying rationale. In this paper, after providing a brief overview of the relevant literature, we take a closer look at one of those papers, the trading model of Vlcek and Hens (2011) and analyze its implications on Prospect Theory parameters using an adopted maximum likelihood approach for a dataset of 656 individual investors from a large German discount brokerage firm. We find evidence that investors in our dataset are moderately averse to large losses and display high risk sensitivity, supporting the main assumptions of Prospect Theory. T3 - SAFE working paper - 146 KW - Prospect Theory KW - Parameter Elicitation KW - Investors Heterogeneity Y1 - 2016 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/41698 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-416989 UR - https://ssrn.com/abstract=2845338 PB - SAFE CY - Frankfurt am Main ER -