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1.
GM Foods and the Misperception of Risk Perception 总被引:3,自引:0,他引:3
George Gaskell Nick Allum Wolfgang Wagner Nicole Kronberger Helge Torgersen Juergen Hampel Julie Bardes 《Risk analysis》2004,24(1):185-194
Public opposition to genetically modified (GM) food and crops is widely interpreted as the result of the public's misperception of the risks. With scientific assessment pointing to no unique risks from GM crops and foods, a strategy of accurate risk communication from trusted sources has been advocated. This is based on the assumption that the benefits of GM crops and foods are self-evident. Informed by the interpretation of some qualitative interviews with lay people, we use data from the Eurobarometer survey on biotechnology to explore the hypothesis that it is not so much the perception of risks as the absence of benefits that is the basis of the widespread rejection of GM foods and crops by the European public. Some respondents perceive both risks and benefits, and may be trading off these attributes along the lines of a rational choice model. However, for others, one attribute-benefit-appears to dominate their judgments: the lexicographic heuristic. For these respondents, their perception of risk is of limited importance in the formation of attitudes toward GM food and crops. The implication is that the absence of perceived benefits from GM foods and crops calls into question the relevance of risk communication strategies for bringing about change in public opinion. 相似文献
2.
When does trade become a one-way relationship? We study bilateral trade balances for a sample of 18 European countries over the period from 1948 through 2008. We find that, with the introduction of the euro, trade imbalances among euro area members widened considerably, even after allowing for permanent asymmetries in trade competitiveness within pairs of countries or in the overall trade competitiveness of individual countries. This is consistent with indications that pair-wise trade tends to be more balanced when nominal exchange rates are flexible. Intra-euro area imbalances also seem to have become more persistent with the introduction of the euro, some of which is linked to labor market inflexibility. Reviewing the direction of imbalances, we find that bilateral trade surpluses are decreasing in the real exchange rate, decreasing in growth differentials, and increasing in the relative volatility of national business cycles. Finally, countries with relatively higher fiscal deficits and less flexible labor and product markets exhibit systematically lower trade surpluses than others. 相似文献
3.
Geir Scott Brunborg Bjørn Helge Johnsen Ståle Pallesen Helge Molde Rune Aune Mentzoni Helga Myrseth 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2010,26(4):545-559
This study investigated the relationship between aversive conditioning, heart rate variability suppression, behavioral activation
system/behavioral inhibition system and risk-avoidance on the Iowa gambling task (IGT) in a nonclinical sample (29 male, 29
female, mean age = 20.7). A laboratory based Pavlovian aversive conditioning paradigm was used where a 1500 Hz tone (CS+)
was followed by a burst of loud white noise (US), and a 850 Hz (CS−) tone was never followed by the US. In a subsequent extinction
phase where the CS+ and CS− were presented without the US, conditioned skin conductance responses to the CS+ indicated aversive
conditioning. The results showed that the participants who did not show aversive conditioning (N = 26) exhibited significantly less risk-avoidance compared to participants who did show aversive conditioning (N = 32). Regression analysis showed that among the study variables, only aversive conditioning contributed significantly to
explaining variance in risk-avoidance. These results may have implications for understanding risk-taking in gambling in general,
and may be a starting point understanding the role of aversive conditioning in the development and maintenance of gambling
problems. 相似文献
4.
Audhild Hønsi Rune Aune Mentzoni Helge Molde Ståle Pallesen 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2013,29(3):359-375
Attentional bias has been the subject of extensive empirical investigation in connection with chemical addictions, and it has been demonstrated in users of several different substances. The findings show that substance users seem to notice and attend to substance-related stimuli more readily than non-substance-related stimuli. Less is known, however, about attentional bias in pathological gambling. This systematic review investigates the existing empirical evidence on attentional bias in problem and pathological gamblers. Eleven studies were identified and evaluated following a literature search. Key findings are that problem and pathological gamblers seem to exhibit attentional bias toward gambling-related stimuli across different measuring paradigms, although some negative findings were reported. Recommendations aimed at improving research on this topic include better validation of measures, the inclusion of manipulations of craving level, and adding variations in gambling severity as a variable, as well as gambling preference. Research on therapeutic procedures aimed at reducing attentional bias is also recommended. 相似文献
5.
Helge Blaker 《Revue canadienne de statistique》2000,28(4):783-798
The author describes a method for improving standard “exact” confidence intervals in discrete distributions with respect to size while retaining correct level. The binomial, negative binomial, hypergeometric, and Poisson distributions are considered explicitly. Contrary to other existing methods, the author's solution possesses a natural nesting condition: if α < α', the 1 ‐ α' confidence interval is included in the 1 ‐ α interval. Nonparametric confidence intervals for a quantile are also considered. 相似文献
6.
Helge Blaker 《Scandinavian Journal of Statistics》1999,26(1):1-15
ABSTRACT. The problem of estimating the mean of a multivariate normal distribution when the parameter space allows an orthogonal decomposition is discussed. Risk functions and lower bounds for a class of shrinkage estimators that includes Stein's estimator are derived, and an improvement on Stein's estimator that takes advantage of the orthogonal decomposition is introduced. Uniform asymptotics related to Pinsker's minimax risk is derived and we give conditions for attaining the lower risk bound. Special cases including regression and analysis of variance are discussed. 相似文献
7.
Helge Peters 《Gruppendynamik und Organisationsberatung》2000,31(1):31-41
Currently we observe two trends in social control: It is increasingly carried out by informal agencies and it is shifted ?downwards‘. As regards the first trend, two variants have become apparent: a criminalizing variant and a support variant. The criminalizing variant reflects widespread attitudes among the general public and is in accord with the interests of power. The support variant reflects modern demands on the ability of individuals to make decisions. However, the capacity to meet these demands and to have the ability to shift social control ?downwards‘ do not provide a sufficient basis for individual autonomy. 相似文献
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9.
Donatella Di Marco Alicia Arenas Lourdes Munduate Helge Hoel 《Revista de Psicología Social》2013,28(1):122-151
AbstractIn recent years there has been a great deal of social and legislative progress in the struggle against discrimination on grounds of sexual orientation. However, the coming out process in the workplace is still a crucial aspect in the lives of many lesbians and gays (LG). This study sets out to analyse the different strategies that Spanish LG adopt when revealing their sexual orientation at work by identifying the factors that facilitate or hinder this process. It also analyses the personal and organizational consequences of the strategies used in the coming out process. The study was carried out through in-depth interviews with 15 LG. Results show that the coming out strategies vary and are affected by different factors (e.g., characteristics of the colleagues, sector, etc.). Moreover, it confirmed that the coming out process (or its absence) can have consequences at different levels (e.g., relationships with colleagues, perception of organizational injustice, etc.). 相似文献
10.
Quality of Life in a City: The Effect of Population Density 总被引:1,自引:0,他引:1
There exist a number of concepts andoperational definitions of quality of life. Inthe present study the aim has been to develop acomprehensive, global index of quality of life,and relate the sub-indexes and global index tovarious socio-demographic variables, somatichealth and density of population in theresidential area. The sample consisted of 2066individuals between 18 and 65 years old fromthe common population. Seven sub-indexes weredeveloped. They constituted one factor withmoderate intercorrelations between thesub-indexes. Good somatic health, living in astable relationship with a partner, preferablymarried, in a less densely populated area,having a good education, a good income andbeing a younger female were the independentstatistical determinants of global quality oflife. However, various sub-indexes were relatedto different socio-demographic variables. Agewas oppositely related to differentsub-indexes. The study shows the importance ofwhat type of quality of life is investigated.To our knowledge, this is the first study ofthe effect of population density on quality oflife. 相似文献