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Karni and Safra [8] prove that the Becker-DeGroot-Marschak mechanism reveals a decision maker's true certainty equivalent of a lottery if and only if he satisfies the independence axiom. Segal [17] claims that this mechanism may reveal a violation of the reduction of compound lotteries axiom. This paper empirically tests these two interpretations. Our results show that the second interpretation fits better with the collected data. Moreover, we show by means of some nonexpected utility examples that these results are consistent with a wide range of functionals. 相似文献
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This article compares the performance of the expected utility (EU) and lottery-dependent expected utility (LDEU) models in predicting the actual choices of experimental subjects among risky options. In the process, we present two approaches for calibrating the LDEU model for an individual decision maker. The results indicate that while LDEU exhibits a higher potential for correctly predicting choice, the version of the model calibrated by indifference judgments does not outperform EU. We suggest a functional form for the parametric functions that defines the LDEU model, and discuss ways in which this function can be incorporated into choice-based assessment approaches to improve predictions.This research was supported in part by the Business Associates Fund at the Fuqua School of Business, Duke University. 相似文献
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Michelle Crozier Heidi Muenchberger Jacinta Colley Carolyn Ehrlich 《The Australian journal of social issues》2013,48(4):455-472
The following article provides a snapshot of the current self‐direction movement within the disability sector across the industrialised world, with particular emphasis on the Australian context. As a global movement, self‐direction has been in progress for several decades through a variety of implemented responses. Despite implementation variation, all self‐direction models aim to facilitate individual control and decision making in care and support services. We describe self‐direction, its various models and programs, and explore its benefits and challenges. We conclude by making broad recommendations for decision makers involved in self‐direction. In particular, we offer a hierarchical decision tree that can be used to inform policy decisions at a systems – government policy – and organisational level. 相似文献
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Lindsay R. Nickel Alyssa R. Thatcher Flavio Keller Robert H. Wozniak Jana M. Iverson 《Infancy》2013,18(5):639-661
Evidence suggests that children and adults diagnosed with autism spectrum disorders (ASD) exhibit difficulties with postural control. Retrospective video studies of infants later diagnosed with ASD indicate that infants who eventually receive an ASD diagnosis exhibit delays in postural development. This study investigates early posture development prospectively and longitudinally in 22 infants at heightened biological risk for ASD (HR) and 18 infants with no such risk (Low Risk; LR). Four HR infants received an autism diagnosis (AD infants) at 36 months. Infants were videotaped at home at 6, 9, 12, and 14 months during everyday activities and play. All infant postures were coded and classified as to whether or not they were infant‐initiated. Relative to LR infants, HR infants were slower to develop skill in sitting and standing postures. AD infants exhibited substantial delays in the emergence of more advanced postures and initiated fewer posture changes. Because posture advances create opportunities for infants to interact with objects and people in new and progressively more sophisticated ways, postural delays may have cascading effects on opportunities for infant exploration and learning. These effects may be greater for infants with ASD, for whom posture delays are more significant. 相似文献
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Tom Andersen Heidi Danielsen Hogne Sonnesyn Magni Sonnesyn 《Australian and New Zealand Journal of Family Therapy》1985,6(3):145-150
This article is a contribution to the necessary development of process evaluation in family therapy. A videotaped case, consisting of six sessions, is reviewed and the changes in the various family relationships are described. Attempts are made to look for correspondences between circular questioning in one of the sessions and shifts in relationships. 相似文献
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