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Portfolio decisions and brain reactions via the CEAD method
Majer, Piotr; Mohr, Peter; Heekeren, Hauke R.; Härdle, … - 2014
Decision making can be a complex process requiring the integration of several attributes of choice options … functional magnetic resonance imaging (fMRI) data from an investment decision (ID) study for ID-related effects. We propose a new … technique for identifying activated brain regions: Cluster, Estimation, Activation and Decision (CEAD) method. Our analysis is …
Persistent link: https://www.econbiz.de/10010379977
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Cognitive load increases risk aversion
Gerhardt, Holger; Biele, Guido P.; Heekeren, Hauke R.; … - 2016
. We discuss how these findings relate to both dual-system and unitarysystem theories of decision making.We observe that … predictions of both recent dual-system and drift–diffusion models of the decision-making process are confirmed by our data and …
Persistent link: https://www.econbiz.de/10011438007
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Preference for randomization : empirical and experimental evidence
Dwenger, Nadja; Kübler, Dorothea; Weizsäcker, Georg - 2013
by many theories of choice and implies that the decision-maker prefers receiving the best outcome for sure over all … treatments where decision-makers are asked to submit multiple decisions without knowing which one is relevant, many participants … decision. A large data set on (high-stake) university applications in Germany shows patterns that are consistent with a …
Persistent link: https://www.econbiz.de/10009681824
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Do individuals recognize cascade behavior of others? : an experimental study
Grebe, Tim (contributor); Schmid, Julia (contributor);  … - 2006
is not recognized. -- information cascade ; Bayes' Rule ; decision under risk and uncertainty ; experimental economics …
Persistent link: https://www.econbiz.de/10003402312
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Das hybride Wahlmodell und seine Anwendung im Marketing
Dannewald, Till (contributor); Kreis, Henning (contributor);  … - 2007
Traditional choice models assume that observable behavior results from an unspecified evaluation process of the observed individual. When it comes to the revelation of this process mere choice models rapidly meet their boundaries, as psychological factors (e.g., consumers' perception or...
Persistent link: https://www.econbiz.de/10003635041
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The neural basis of following advice
Biele, Guido; Rieskamp, Jörg; Krugel, Lea K.; … - 2011
Learning by following explicit advice is fundamental for human cultural evolution, yet the neurobiology of adaptive social learning is largely unknown. Here, we used simulations to analyze the adaptive value of social learning mechanisms, computational modeling of behavioral data to describe...
Persistent link: https://www.econbiz.de/10009229737
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Neurobiology of value integration : when value impacts valuation
Park, Soyoung Q.; Kahnt, Thorsten; Rieskamp, Jörg; … - 2011
neurobiological underpinnings of human decision making involving the integration of different values. …
Persistent link: https://www.econbiz.de/10009229769
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Risk related brain regions detected with 3D image FPCA
Chen, Ying; Härdle, Wolfgang; Qiang, He; Majer, Piotr - 2015
Risk attitude and perception is reflected in brain reactions during RPID experiments. Given the fMRI data, an important research question is how to detect risk related regions and to investigate the relation between risk preferences and brain activity. Conventional methods are often insensitive...
Persistent link: https://www.econbiz.de/10010529349
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Is scientific performance a function of funds?
Zharova, Alona; Härdle, Wolfgang; Lessmann, Stefan - 2017
publications. We discuss the implications for policy and decision making and suggest recommendations for research management of …
Persistent link: https://www.econbiz.de/10011760360
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Are correlations constant over time? : application of the CC-TRIGt-test to return series from different asset classes
Fischer, Matthias (contributor) - 2007
A new test for constant correlation is proposed. Based on the bivariate Student-t distribution, this test is derived as Lagrange multiplier (LM) test. Whereas most of the traditional tests (e.g. Jennrich, 1970, Tang, 1995 and Goetzmann, Li & Rouwenhorst, 2005) specify the unknown correlations as...
Persistent link: https://www.econbiz.de/10003633489