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1.
Catastrophic events, such as floods, earthquakes, hurricanes, and tsunamis, are rare, yet the cumulative risk of each event occurring at least once over an extended time period can be substantial. In this work, we assess the perception of cumulative flood risks, how those perceptions affect the choice of insurance, and whether perceptions and choices are influenced by cumulative risk information. We find that participants' cumulative risk judgments are well represented by a bimodal distribution, with a group that severely underestimates the risk and a group that moderately overestimates it. Individuals who underestimate cumulative risks make more risk‐seeking choices compared to those who overestimate cumulative risks. Providing explicit cumulative risk information for relevant time periods, as opposed to annual probabilities, is an inexpensive and effective way to improve both the perception of cumulative risk and the choices people make to protect against that risk. 相似文献
2.
Heinrich Geißler Brigitta Geißler-Gruber 《Gruppendynamik und Organisationsberatung》2002,33(4):403-418
?Appreciative experience sharing‘ within the scope of appreciation talks is designed as an health-science based instrument for managers. It is a concept for participative monitoring of the social relations at work and the working conditions between employees and managers. At the same time, the appreciation talks show themselves to be a situational-social health resource in enterprises. The exhibited concept was developed and tested, and further developed to a workshop for managers, within the scope of a qualitative study and consulting project in three public urban-transportation companies in Germany. The conception, the results of the project, the workshop concept, and first experiences with ‘appreciative experience sharing’ by managers with direct responsibility for employees are described and discussed. 相似文献
3.
Concurrent and longitudinal associations between peer crowd affiliation and internalized distress were examined in a sample of 246 youth (148 girls, 98 boys). Children completed measures of depression, social anxiety, loneliness, and self‐esteem when they were in grades 4 to 6 (Time 1), and again 6 years later during adolescence (grades 10 – 12; Time 2). At Time 2, adolescents also reported their self‐concept and their identification with reputation‐based peer crowds, including Populars, Jocks, Brains, Burnouts, Non‐Conformists, and None/Average crowds. Results indicated that adolescents' report of peer crowd affiliation was concurrently associated with self‐concept and levels of internalizing distress. Follow‐back analyses of internalizing trajectories revealed that Populars/Jocks had experienced significant declines in internalizing distress across development, whereas Brains exhibited some increases in internalizing distress between childhood and adolescence. 相似文献
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Consider a website and the surfers visiting its pages. A typical issue of interest, for example while monitoring an advertising campaign, concerns whether a specific page has been designed successfully, i.e. is able to attract surfers or address them to other pages within the site. We assume that the surfing behaviour is fully described by the transition probabilities from one page to another, so that a clickstream (sequence of consecutively visited pages) can be viewed as a finite-state-space Markov chain. We then implement a variety of hierarchical prior distributions on the multivariate logits of the transition probabilities and define, for each page, a content effect and a link effect. The former measures the attractiveness of the page due to its contents, while the latter signals its ability to suggest further interesting links within the site. Moreover, we define an additional effect, representing overall page success, which incorporates both effects previously described. Using WinBUGS, we provide estimates and credible intervals for each of the above effects and rank pages accordingly. 相似文献
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Utz Schäffer Jan-Philipp Lüdtke Diedrich Bremer Matthias Häußler 《Zeitschrift für Betriebswirtschaft》2012,82(1):47-73
This paper investigates the influence of accounting standards on systematic earnings understatement. To isolate the effect
of reporting regulations from those of other institutional drivers of earnings management, Holthausen (2003) proposes analyzing
reporting practices in a country undergoing a transition in accounting standards. We respond to this call by analyzing earnings
management practices of large German-listed companies before and after their transitions from German GAAP to IFRS. Specifically,
we focus on Big Bath behavior following Chief Financial Officer turnovers between 1999 and 2006. Our findings provide evidence
of the effect of accounting standards on the existence of this particular earnings understatement pattern. However, while
we detect Big Bath behavior for our sample of German GAAP firms, we find no such indication for those firms reporting under
IFRS. Controlling for alternative explanations such as self-selection bias does not change our findings. We conclude that
accounting standards seem to have a considerable influence on earnings management behavior, independent of managers’ and auditors’
incentives. 相似文献
9.
We propose localized spectral estimators for the quadratic covariation and the spot covolatility of diffusion processes, which are observed discretely with additive observation noise. The appropriate estimation for time‐varying volatilities is based on an asymptotic equivalence of the underlying statistical model to a white‐noise model with correlation and volatility processes being constant over small time intervals. The asymptotic equivalence of the continuous‐time and discrete‐time experiments is proved by a construction with linear interpolation in one direction and local means for the other. The new estimator outperforms earlier non‐parametric methods in the literature for the considered model. We investigate its finite sample size characteristics in simulations and draw a comparison between various proposed methods. 相似文献
10.
Inga Veksler 《East European Jewish Affairs》2016,46(3):350-368
ABSTRACTBetween 1971 and 1990, approximately 185,000 Soviet Jews who immigrated to countries other than Israel traveled through Austria and Italy. This period of transit migration through the “Vienna–Rome pipeline” left deep impressions on most emigrants, as it entailed their first encounter with the West as well as their first steps in their new identity as immigrants. This essay focuses on photography of remnants of the journey – of objects, of old photographs, and of landscapes – in order to explore ideas about immigrants' relationship to the passage of time and their migration experiences. It emphasizes the embodied though often unacknowledged tenor of the past rather than treating it as a distant object of nostalgia. This essay further shows that immigrants draw not only on their experiences in the Soviet Union or the United States to reflect on their lives; the places of transit migration also hold lasting meaning for them. 相似文献