Preference and belief: Ambiguity and competence in choice under uncertainty

We investigate the relation between judgments of probability and preferences between bets. A series of experiments provides support for the competence hypothesis that people prefer betting on their own judgment over an equiprobable chance event when they consider themselves knowledgeable, but not otherwise. They even pay a significant premium to bet on their judgments. These data connot be explained by aversion to ambiguity, because judgmental probabilities are more ambiguous than chance events. We interpret the results in terms of the attribution of credit and blame. The possibility of inferring beliefs from preferences is questioned.¹     

Common consequence effects in pricing and choice

This paper presents an experimental study of common consequence effects in binary choice, willingness-to-pay (WTP) elicitation, and willingness-to-accept (WTA) elicitation. We find strong evidence in favor of the fanning out hypothesis (Machina, Econometrica 50:277–323, 1982) for both WTP and WTA. In contrast, the choice data do not show a clear pattern of violations in the absence of certainty effects. Our results underline the relevance of differences between pricing and choice tasks, and their implications for models of decision making under risk.     

Hospice and Latinos: a review of the literature

Research on hospice use by Latinos, although increasing since the late 1990s, remains sparse. This article presents a review of the recent available literature on this topic within the past 15 years. The main aspects discussed are access to hospice care and various factors that researchers suggest affect Latino utilization of hospice care. These factors include beliefs about health care, death and end-of-life care, lack of insurance, lower referral rates by health care professionals and the hospice caregiver requirement. Overall, Latinos underutilize hospice but the reasons remain unclear. No evidence exists to indicate that Latinos are dissatisfied with services once they receive them. Also, no evidence exists to indicate they want services but cannot obtain them. Implications for social work practice and research are discussed.     

Ambiguity,pessimism, and rational religious choice

Using a subclass of the α-maximin expected-utility preference model, in which the decision maker’s degree of ambiguity and degree of pessimism are each parameterized, we present a theory of religious choice in the Pascalian decision theory tradition, one that can resolve dilemmas, address the “many Gods objection,” and address the ambiguity inherent in religious choice. Parameterizing both the degree of ambiguity and the degree of pessimism allows one to examine how the two interact to impact choice, which is useful regardless of the application. Applying this model to religious choice is a move beyond subjective expected-utility theory, allowing us to show that a change in either the degree of ambiguity or the degree of pessimism can lead a decision maker to “convert” from one religion to another.     

The classification of parametric choices under uncertainty: analysis of the portfolio choice problem

This paper describes the admissible classes of parametric distribution functions of return portfolios and analyzes their consistency with the maximization of the expected utility. In particular, we present a general theory and a unifying framework with the following aims: (1) studying the implications of the classical market restrictions on the portfolio distributions; (2) establishing general rules of ordering, when the uncertain prospect depends by a finite number of parameters; (3) understanding how a dispersion measure has to be used, in order to obtain the investors' optimal portfolios.     

Parenting interventions in shelter settings: a qualitative systematic review of the literature

The aim of this literature review was to critique the state of the research on the effects of implementing parenting programmes in shelters for homeless families. A comprehensive search of multiple databases yielded 12 studies for inclusion. The methodological sophistication of the studies varied, with most investigations based on very small samples and one‐group pre‐post designs. Results indicated that parents generally viewed the interventions as enjoyable and informative, and attendance was good. Incentives were often used to encourage attendance. Evidence was limited in terms of effectiveness of the interventions, but the few studies of evidence‐based parenting programmes showed changes in parenting and child functioning. Suggestions are provided for future investigations in this important yet challenging field of study.     

中国现实主义文学思潮的选择

应该说,在今天研究这一问题难免吃力不讨好.一方面,现实主义作为二十世纪中国文学长期"独尊"的对象曾给人们留下许多痛苦的记忆,以致许多人再也不愿提及;另一方面,许多人认为它作为一个核心问题已经说的很多,况且这种创作方法已经过时,探讨它已经没有什么当下意义.     

Recognition of neglect and early response: overview of a systematic review of the literature

This paper summarizes the key findings from a systematic literature review that sought to identify existing evidence about the ways in which the needs of neglected children and their parents are signalled and the response to those needs. Using systematic review guidelines, 14 databases were searched for primary research studies published in English from 1995 to 2005. An initial 20 480 items were systematically filtered down to 63 papers for inclusion. The evidence suggests that, while there is little evidence about how needs for help are directly signalled, there is considerable evidence about how needs are indirectly signalled. There is evidence that professionals can identify signs of neglect, but are not always clear about the best response. There remain gaps in evidence about how best to respond to neglected needs, especially within schools.     

Western black soldiers since The Buffalo Soldiers: a review of the literature

As recently freed black Americans moved westward in the decades after the Civil War, they sought employment opportunities and escape from an oppressive racial environment. Some men became United States soldiers, named the Buffalo Soldiers by plains Indians, serving in the West. Neglected by the white public and scholars for years, in 1967 William H. Leckie published his classic book, The Buffalo Soldiers. Since then, a flood of scholarly and more general works investigating the life, careers, and roles of these black western soldiers have been produced. This study serves as an interpretive review of that literature. Even so, more research and writing is left to be accomplished. What is important to remember is that these soldiers served with distinction and valor, offered a source of pride to black Americans, and both faced and fought racial injustice in the West—even though the discrimination was not usually as virulent as that on the other side of the Mississippi River.     

Theory and social work: A conceptual review of the literature

This article presents a conceptual review of the literature concerning social work and theory. Based on analysis of 93 research studies, drawn from literature in English published between 1968 and 2016, the review considers the many ways that theory is conceptualised in the literature, and asks meta‐theoretical questions about how and why different conceptualisations arise. The article examines definitional questions and ambiguities concerning the use of theory, extant research on the use of theory by social workers in practice, hostility expressed regarding theory in social work, the theory/practice divide and perspectives that emphasise theory's utility or functionality. The article points at some methodological and ethical limitations concerning current research, and summarises dominant, as well as less prominent, versions of what counts as theory within the social work discipline, before finally suggesting that further meta‐theoretical research is needed.     

A place of our own: a narrative review of the family housing services literature

The problem of family homelessness has been widely recognized by both policymakers and social service providers. What is not clear, however, is the overall effectiveness of housing intervention services provided to homeless families. This narrative review of the literature discusses 10 studies from 1991 to 2013 on both transitional and supportive housing in order to assess under what conditions and for whom these interventions are most effective. More specifically this review evaluates the research regarding which elements of intervention services are most helpful to families, the outcomes associated with these programmes, and the short‐ and long‐term effectiveness of housing interventions. Evidence suggests that while these programmes produce positive outcomes for families, a one‐size‐fits‐all model of housing may not be effective for all families. Limitations and directions for future research are also discussed.     

The role of informal caregivers in the well‐being of orphans in Botswana: a literature review

With the orphan population escalating, communities continue to rely on relatives to provide care to orphans. Therefore, there is a need to explore the role of caregivers with regard to the well‐being of orphans, the challenges they face, as well as how they could be empowered to be more responsive to children's needs. The paper acknowledges that informal caregivers play an important role in the lives of orphans. The paper also concedes that, in the process, caregivers are faced with challenges which make it difficult for them to fulfil their responsibilities and roles. As a result, they sometimes act as sources of stress to orphans, which eventually complicate the children's adjustment to the loss of their parents. Lastly, the paper paves the way to ensuring that challenges faced by informal caregivers are addressed in a manner that will make them more supportive to orphans.     

论广义资产证券化的理论体系

广义资产证券化的理论体系 ,主要包括 :资产证券化的四大类业务———实体资产证券化、信贷资产证券化、证券资产证券化、现金资产证券化 ;资产证券化的核心原理———基础资产的现金流分析 ,资产证券化的基本原理———资产重组原理、风险隔离原理、信用增级原理 ;资产证券化趋势的理论分析。     

Hopes and Fears: the Conflicting Effects of Risk Ambiguity

The Ellsberg Paradox documented the aversion to ambiguity in the probability of winning a prize. Using an original sample of 266 business owners and managers facing risks from climate change, this paper documents the presence of departures from rationality in both directions. Both ambiguity-seeking behavior and ambiguity-averse behavior are evident. People exhibit fear effects of ambiguity for small probabilities of suffering a loss and hope effects for large probabilities. Estimates of the crossover point from ambiguity aversion (fear) to ambiguity seeking (hope) place this value between 0.3 and 0.7 for the risk per decade lotteries considered, with empirical estimates indicating a crossover mean risk of about 0.5. Attitudes toward the degree of ambiguity also reverse at the crossover point.     

On a lottery pricing anomaly: Time tells the tale

This article identifies a lottery pricing anomaly, which I call the “r=x anomaly,” that is present in past pricing experiments—namely, a tendency for subjects to announce that their minimum selling price for some binary lottery is the greater of the two lottery prizes. The study shows that the anomaly is inconsistent with two theoretical explanations for another well-known pricing anomaly (preference reversal) and experimentally replicates these inconsistencies. The new experiment also measures the time subjects spend making their pricing decisions. These decision-time measurements suggest that ther=x anomaly may be a decision-cost effect.     

Research Review: The role of grandparents in intergenerational support for families with disabled children: a review of the literature

The family in late modernity faces demographic change. However, it is still apparent that intergenerational relationships and exchanges of resources are valued. There is a growing literature on the important role that grandparents play in their children’s families. In contrast, there is limited research exploring the support grandparents provide to families with disabled children. This is an important gap in our knowledge, as families with disabled children frequently face additional caring responsibilities and emotional demands. From the studies that do exist, it is clear that grandparents’ support to families with disabled children is generally valued. However, the literature remains partial: past studies are small‐scale, focused upon parents’ perceptions of support (especially mother’s), and frequently based upon North American data. Recognizing these limitations and the fact that grandparents themselves have support needs which require consideration, this paper identifies key areas where important issues remain unanswered and further research is required. It argues that research is needed to begin untangling the different support needs of parents, grandparents and other family members, and the different effects of grandparent support that different family members’ experience. Exploration of grandparents’ own support needs also indicates the need for wider policy and service consideration.