Documents disponibles écrits par cet auteur

A quantitative measurement of regret theory / Han Bleichrodt in Management science, Vol. 56 N° 1 (Janvier 2010) 

Public ISBD [article]  in Management science > Vol. 56 N° 1 (Janvier 2010) . - pp. 161-175 Titre : A quantitative measurement of regret theory Type de document : texte imprimé Auteurs : Han Bleichrodt, Auteur ; Alessandra Cillo, Auteur ; Enrico Diecidue, Auteur Année de publication : 2010 Article en page(s) : pp. 161-175 Note générale : Management Langues : Anglais (eng) Mots-clés : Regret  theory  Utility  measurement  Decision  under  uncertainty Index. décimale : 658 Organisation des entreprises. Techniques du commerce Résumé : This paper introduces a method to measure regret theory, a popular theory of decision under uncertainty. Regret theory allows for violations of transitivity, and it may seem paradoxical to quantitatively measure an intransitive theory. We adopt the trade-off method and show that it is robust to violations of transitivity. Our method makes no assumptions about the shape of the functions reflecting utility and regret. It can be performed at the individual level, taking account of preference heterogeneity. Our data support the main assumption of regret theory, that people are disproportionately averse to large regrets, even when event-splitting effects are controlled for. The findings are robust: similar results were obtained in two measurements using different stimuli. The data support the reliability of the trade-off method: its measurements could be replicated using different stimuli and were not susceptible to strategic responding. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/56/1.toc [article] A quantitative measurement of regret theory [texte imprimé] / Han Bleichrodt, Auteur ; Alessandra Cillo, Auteur ; Enrico Diecidue, Auteur . - 2010 . - pp. 161-175. Management Langues : Anglais (eng) in Management science > Vol. 56 N° 1 (Janvier 2010) . - pp. 161-175 Mots-clés : Regret  theory  Utility  measurement  Decision  under  uncertainty Index. décimale : 658 Organisation des entreprises. Techniques du commerce Résumé : This paper introduces a method to measure regret theory, a popular theory of decision under uncertainty. Regret theory allows for violations of transitivity, and it may seem paradoxical to quantitatively measure an intransitive theory. We adopt the trade-off method and show that it is robust to violations of transitivity. Our method makes no assumptions about the shape of the functions reflecting utility and regret. It can be performed at the individual level, taking account of preference heterogeneity. Our data support the main assumption of regret theory, that people are disproportionately averse to large regrets, even when event-splitting effects are controlled for. The findings are robust: similar results were obtained in two measurements using different stimuli. The data support the reliability of the trade-off method: its measurements could be replicated using different stimuli and were not susceptible to strategic responding. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/56/1.toc

Risk preferences at different time periods / Mohammed Abdellaoui in Management science, Vol. 57 N° 5 (Mai 2011) 

Public ISBD [article]  in Management science > Vol. 57 N° 5 (Mai 2011) . - pp. 975-987 Titre : Risk preferences at different time periods : An experimental investigation Type de document : texte imprimé Auteurs : Mohammed Abdellaoui, Auteur ; Enrico Diecidue, Auteur ; Ayse Öncüler, Auteur Année de publication : 2011 Article en page(s) : pp. 975-987 Note générale : Management Langues : Anglais (eng) Mots-clés : Time  preferences  Risk  preferences  Delayed  lotteries  Attitude  toward  risk  Utility  Decision  weights  Optimism  Sensitivity  to  probabilities Index. décimale : 658 Organisation des entreprises. Techniques du commerce Résumé : Intertemporal decision making under risk involves two dimensions: time preferences and risk preferences. This paper focuses on the impact of time on risk preferences, independent of the intertemporal trade-off of outcomes, i.e., time preferences. It reports the results of an experimental study that examines how delayed resolution and payment of risky options influence individual choice. We used a simple experimental design based on the comparison of two-outcome monetary lotteries with the same delay. Raw data clearly reveal that subjects become more risk tolerant for delayed lotteries. Assuming a prospect theory–like model under risk, we analyze the impact of time on utility and decision weights, independent of time preferences. We show that the subjective treatment of outcomes (i.e., utility) is not significantly affected by time. In fact, the impact of time is completely absorbed by the probability weighting function. The effect of time on risk preferences was found to generate probabilistic optimism resulting in a higher risk tolerance for delayed lotteries. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/cgi/content/abstract/57/5/975 [article] Risk preferences at different time periods : An experimental investigation [texte imprimé] / Mohammed Abdellaoui, Auteur ; Enrico Diecidue, Auteur ; Ayse Öncüler, Auteur . - 2011 . - pp. 975-987. Management Langues : Anglais (eng) in Management science > Vol. 57 N° 5 (Mai 2011) . - pp. 975-987 Mots-clés : Time  preferences  Risk  preferences  Delayed  lotteries  Attitude  toward  risk  Utility  Decision  weights  Optimism  Sensitivity  to  probabilities Index. décimale : 658 Organisation des entreprises. Techniques du commerce Résumé : Intertemporal decision making under risk involves two dimensions: time preferences and risk preferences. This paper focuses on the impact of time on risk preferences, independent of the intertemporal trade-off of outcomes, i.e., time preferences. It reports the results of an experimental study that examines how delayed resolution and payment of risky options influence individual choice. We used a simple experimental design based on the comparison of two-outcome monetary lotteries with the same delay. Raw data clearly reveal that subjects become more risk tolerant for delayed lotteries. Assuming a prospect theory–like model under risk, we analyze the impact of time on utility and decision weights, independent of time preferences. We show that the subjective treatment of outcomes (i.e., utility) is not significantly affected by time. In fact, the impact of time is completely absorbed by the probability weighting function. The effect of time on risk preferences was found to generate probabilistic optimism resulting in a higher risk tolerance for delayed lotteries. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/cgi/content/abstract/57/5/975