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31.
32.
一些经济学理论认为理性的人可能在一定情形下因偏好风险而参加博彩,而一些心理学实验研究则发现博彩者可能存在系统性的心理偏误。对理论的分析发现,彩票对穷人更具有吸引力且博彩者存在非理性心理。国内实证文献也支持这两个结论。如果博彩行为是非理性行为,那么博彩业就有利用人们非理性幼稚心理牟利的嫌疑。政府宣称发行彩票的目的是筹集资金用于社会公益事业,这就形成了一个悖论,即从贫穷群体那里筹集资金来改善他们的处境。 相似文献
33.
Is ethnic prejudice declining in Britain? Change in social distance attitudes among ethnic majority and minority Britons
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Most literature on racial prejudice deals with the racial attitudes of the ethnic majority and ethnic minorities separately. This paper breaks this tradition. We examine the social distance attitudes of white and non‐white British residents to test if these attitudes follow the same trends over time, whether they are driven by the same social processes and whether they are inter‐related. We have three main findings. Firstly, social distance from other ethnic groups has declined over time for both white and ethnic minority Britons. For the white majority there are both period and cohort elements to this decline. Secondly, we see some evidence that social distance between the majority and minority groups is reciprocal. Specifically, minorities who experience rejection by the white British feel a greater sense of distance from them. Thirdly, we find that all groups share the perception of the same ethnic hierarchy. We see evidence of particularly widespread hostility towards Muslim Britons from all ethnic groups suggesting that Muslims are singled out for negative attention from many British residents of all other backgrounds, including a large number who do not express hostility to other groups. 相似文献
34.
Most of the studies on the determinants of individual gambling behaviour rely on cognitive theories. In our study, we argue that, besides cognitive factors, several social factors might play an important role as well. We analyse data from an ad hoc webmail survey conducted on about 2000 undergraduate students enrolled in a large public university in the Northern Italy in the academic year 2012–13. Using a variety of statistical techniques (standard regression models, boosted regression trees and structural equations models), we show that social variables affect both participation in gambling in the past year and latent gambling propensity. In particular, controlling for several proxies for individual cognitive ability and understanding of probability, gambling propensity is positively affected by the degree of gambling in the social surrounding (parents, peers, neighbourhood) and the acceptability of gambling activities to the individual. Moreover, in our sample of college students the role of social factors appears to be larger than that of cognitive factors, and this is consistent across different types of models and specifications. 相似文献
35.
Caroline Vandenplas Michèle Ernst Stähli Dominique Joye Alexandre Pollien 《Mathematical Population Studies》2017,24(2):103-125
ABSTRACTAdjustment for nonresponse should reduce the nonresponse bias without decreasing the precision of the estimates. Adjustment for nonresponses are commonly based on socio-demographic variables, although these variables may be poorly correlated with response propensities and with variables of interest. Such variables nevertheless have the advantage of being available for all sample units, whether or not they are participating in the survey. Alternatively, adjustment for nonresponse can be obtained from a follow-up survey aimed at sample units which did not participate in the survey and from which the variables are designed to be correlated with response propensities. However, information collected through these follow-up surveys is not available for people in the sample who participated neither in the survey nor in its nonresponse follow-up. These two sets of variables when used in a nonresponse model for the Swiss European Social Survey 2012 differ only slightly with regard to their effect on bias correction and on the precision of estimates. The variables from the follow-up are performing slightly better. In both cases, the adjustment for nonresponse performs poorly. 相似文献
36.
Benjamin Hearn Michael D. Brubaker Amanda C. La Guardia 《Journal of LGBT Issues in Counseling》2017,11(4):247-258
ABSTRACTGiven that many professional organizations emphasize the need for comparing assessment results to appropriate reference groups in their codes of ethics, we consider this practice through an ecological perspective as it applies to the lesbian, gay, and bisexual (LGB) population. The purpose of norming and types of assessment bias is discussed with respect to LGB population, which frequently lack specific norming data. The authors discuss whether the LGB population has characteristics similar to other commonly normed for groups and explore how group-shared constructs such as minority stress and internalized homophobia may introduce bias and affect the validity of assessments. A social anxiety assessment as well as a personality disorder inventory are examined for bias as case examples explaining how these assessments may exhibit bias when used with the LGB population. Increases in validity and effects on treatment planning are discussed as benefits of providing LGB-specific norms. Risks of providing these norms, such as minimizing subgroup differences and possibly increasing the risk of discrimination are also addressed before providing clinicians with recommendations as to how they may minimize the risk of bias in their assessment process. 相似文献
37.
Housila P. Singh 《统计学通讯:理论与方法》2017,46(8):3957-3984
This paper addresses the problem of estimating a general parameter using information on an auxiliary variable X. We have suggested a class of exponential-type ratio estimators for the parameter and its properties are studied. It is identified that the estimators due to Upadhyaya et al. [Journal of Statistical Theory and Practice (2011), 5(2), 285–302] and Yadav and Kadilar [Revista Columbiana de Estadistica, (2013), 36(1), 145–152] are members of the proposed estimator. We have also shown that the suggested estimator is more efficient than the estimators of Upadhyaya et al. (2011) and Yadav and Kadilar (2013). Numerical illustration is provided in support of the present study. 相似文献
38.
谈到"诗唐",人们常意指"诗歌的"唐朝,实际上,"诗唐"更指"诗性的"唐朝。从表层看,以诗取士促进了唐人学习、创作诗歌风气的普及,使诗歌从宫廷走向民间,促进了"诗歌的"唐朝的到来。从深层次看,以诗取士促进了唐人诗化人格、诗性思维的发展,使其普遍地表现出思想上的轻视礼教,行为上的不拘小节,气质上的桀傲难驯,人生设计充满理想色彩,但处理问题常带书生意气,促进了"诗性的"唐朝的形成。 相似文献
39.
戴莉 《中华女子学院学报》2016,(4):86-95
学前儿童性别教育的有关研究表明,社会上还存在着根深蒂固的性别歧视和性别偏见,身处特定环境中的学前教育教师以及图画书、教学媒体等仍然带有较强的性别歧视和性别偏见等性别刻板印记。为此,国家需要在学前儿童性别教育研究的基础上重视学前教育阶段的性别平等教育,制定相关的政策,建立性别教育的终身教育体系,构建教师性别平等教育的培训网络平台,以现代性别教育理念为指导,基于对儿童生理差异的尊重,设计出适合学前儿童身心发展特点的性别教育课程,全面有效地实施性别平等教育。 相似文献
40.
运用超额收益法对深圳和上海证券市场的股利政策市场效应进行实证研究,探析不同类型股利的市场效应及投资者行为。结果表明,中国证券投资者在投资决策过程由于受心理因素的影响,对于不同类型的股利政策做出了不同的市场反应,并表现出一定的股利偏好行为,即证券投资者对现金股利政策,尤其稳定的现金股利政策表现出明显的喜好行为,而对于不分配股利政策却表现出了漠视效应行为。 相似文献