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231.
We conduct a standardized survey on risk preferences in 53 countries worldwide and estimate cumulative prospect theory parameters from the data. The parameter estimates show that significant differences on the cross-country level are to some extent robust and related to economic and cultural differences. In particular, a closer look on probability weighting underlines gender differences, economic effects, and cultural impact on probability weighting. The data set is a useful starting point for future research that investigates the impact of risk preferences on the market level. 相似文献
232.
Oliver Schnittka Marius Johnen Franziska Völckner Henrik Sattler Isabel Victoria Villeda Kathrin Urban 《Zeitschrift für Betriebswirtschaft》2017,87(7):899-925
Brand alliances represent a popular business strategy in many industries, because firms hope to evoke positive consumer evaluations of both the alliance’s product and the partner brands. However, extant research offers mixed findings regarding the effects of a brand alliance on its partner brands (i.e., spillover effects). In response, this study separates spillover effects into the effects of the alliance product on the partner brands (brand alliance effects) and the effects between partner brands (brand contrast effects), while also noting the potential moderating impact of perceived attitude- and product-based fit between partner brands on resulting spillover effects. Two experimental studies consistently reveal the existence of brand contrast effects; furthermore, the partner brand’s attitude-based fit reduces undesired brand contrast effects and positively moderates spillover effects in brand alliances, whereas product-based fit does not. Therefore, a third study identifies relevant drivers of partner brand’s attitude-based fit for different brand alliances (i.e., co-branding, ingredient branding, and joint advertising). The findings have notable implications for the design and management of brand alliances. 相似文献
233.
Although the World Health Assembly emphasized as early as in 1996 the need for violence prevention, there is still no generally accepted index for interpersonal destructiveness in a society. Hereby we propose a Societal Index of Interpersonal Destructiveness (SIID) that could be used to compare interpersonal violence in different societies. SIID is a composite of two sub-indices: (1) Index of Interpersonal Destructiveness Prerequisites, and (2) Index of Interpersonal Destructiveness Consequences. This study addresses the construction and internal consistency analysis of SIID. The Indices for periods 1989–1993, 1994–1999, 1999–2004, 2005–2007 and 2008–2010 are computed and for 28–48 countries, depending on availability of high quality and comparative data across time. We conclude that SIID has considerable potential as an internally consistent yardstick for evaluating and comparing the level of interpersonal destructiveness of societies worldwide. 相似文献
234.
The perception of emotional facial expressions may activate corresponding facial muscles in the receiver, also referred to as facial mimicry. Facial mimicry is highly dependent on the context and type of facial expressions. While previous research almost exclusively investigated mimicry in response to pictures or videos of emotional expressions, studies with a real, face-to-face partner are still rare. Here we compared facial mimicry of angry, happy, and sad expressions and emotion recognition in a dyadic face-to-face setting. In sender-receiver dyads, we recorded facial electromyograms in parallel. Senders communicated to the receivers—with facial expressions only—the emotions felt during specific personal situations in the past, eliciting anger, happiness, or sadness. Receivers mostly mimicked happiness, to a lesser degree, sadness, and anger as the least mimicked emotion. In actor-partner interdependence models we showed that the receivers’ own facial activity influenced their ratings, which increased the agreement between the senders’ and receivers’ ratings for happiness, but not for angry and sad expressions. These results are in line with the Emotion Mimicry in Context View, holding that humans mimic happy expressions according to affiliative intentions. The mimicry of sad expressions is less intense, presumably because it signals empathy and might imply personal costs. Direct anger expressions are mimicked the least, possibly because anger communicates threat and aggression. Taken together, we show that incidental facial mimicry in a face-to-face setting is positively related to the recognition accuracy for non-stereotype happy expressions, supporting the functionality of facial mimicry. 相似文献
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236.
Schmidtke O 《The British journal of sociology》2012,63(1):31-8; author reply 47-53
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The Committee for Medicinal Products for Human Use (CHMP) is currently preparing a guideline on 'methodological issues in confirmatory clinical trials with flexible design and analysis plan'. PSI (Statisticians in the Pharmaceutical Industry) sponsored a meeting of pharmaceutical statisticians with an interest in the area to share experiences and identify potential opportunities for adaptive designs in late-phase clinical drug development. This article outlines the issues raised, resulting discussions and consensus views reached. Adaptive designs have potential utility in late-phase clinical development. Sample size re-estimation seems to be valuable and widely accepted, but should be made independent of the observed treatment effect where possible. Where unblinding is necessary, careful consideration needs to be given to preserving the integrity of the trial. An area where adaptive designs can be particularly beneficial is to allow dose selection in pivotal trials via adding/dropping treatment arms; for example, combining phase II and III of the drug development program. The more adaptations made during a late-phase clinical trial, the less likely that the clinical trial would be considered as a confirmatory trial. In all cases it would be advisable to consult with regulatory agencies at the protocol design stage. All involved should remain open to scientifically valid opportunities to improve drug development. 相似文献
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240.
The present study examines different processes leading to lifestyle homogamy in married and cohabiting couples using data from the German Socioeconomic Panel (n = 3,490 couples). The analyses first suggest that alignment over time promotes homogamy of leisure‐related lifestyles, especially with respect to action‐oriented activities. However, intermediate stages in the life course (i.e., phases of active parenting and labor force participation) tend to inhibit alignment, whereas cues indicating a high‐quality match (e.g., educational homogamy and being in a long‐term or a marital relationship) promote alignment. Second, we find evidence for selection effects in that not only homogamy but also convergence of lifestyles over time may increase couples' resilience to relationship breakup. 相似文献