Interval estimation: An information theoretic approach

ABSTRACT

We develop here an alternative information theoretic method of inference of problems in which all of the observed information is in terms of intervals. We focus on the unconditional case in which the observed information is in terms the minimal and maximal values at each period. Given interval data, we infer the joint and marginal distributions of the interval variable and its range. Our inferential procedure is based on entropy maximization subject to multidimensional moment conditions and normalization in which the entropy is defined over discretized intervals. The discretization is based on theory or empirically observed quantities. The number of estimated parameters is independent of the discretization so the level of discretization does not change the fundamental level of complexity of our model. As an example, we apply our method to study the weather pattern for Los Angeles and New York City across the last century.     

Constructing prevention programmes with a Māori health service provider view

Mainstream approaches to chronic condition management and prevention inadequately address the needs of Māori, the Indigenous people of New Zealand. Māori health service providers (MHSPs) are uniquely placed to address the critical gap in the prevention of chronic conditions. In this paper, we report qualitative research findings investigating how prevention was being modelled, practiced and measured in selected MHSP settings. Results indicate barriers to achieving wellbeing through health service delivery. The dominant individualistic, medical conditions-focused discourse, along with responding to acute need, is a driver of service delivery norms.There are examples of shifts in organisational structure and delivery configurations that demonstrate that these norms are being challenged and reframed, in some form, by MHSPs. Consolidation of these approaches requires significant work and increased resources as well as a broader systems-level response that prioritises prevention.     

Exploring the unknown aspects of Roma community in Cyprus and the role of social work practice

The status quo of Roma communities in Europe is strongly marked by marginalisation and discrimination. Roma people tend to face social exclusion and segregation leading to lack of education, chronic unemployment and limited access to healthcare, housing and public services as well as widespread poverty. Very few studies have been conducted as far as Roma community in Cyprus are concerned and almost none has explored quality of life of this ethnic minority. Therefore, this article examines quality of life dimensions in approximately half of the population (n?=?156) residing in the catchment area. Both quantitative and qualitative results showed poor standards of living, high school dropout rates and high levels of marginalisation. Social work as discipline can foster a more empowering and coordinating role as to enhance Roma’s distinctive identity and improve standards of living.     

Sexual objectification decreases women’s experiential consumption (but not material consumption)

The current investigation examined our prediction that sexual objectification decreases women’s experiential consumption but not material consumption. Three experiments provided converging support for this prediction. In particular, female participants reported lower tendency to engage in experiential consumption after recalling a past experience of objectification (Studies 1 and 3) and chose a material product over an experiential one after receiving objectifying comments (Study 2). Furthermore, Study 3 found that sexual objectification reduced purchase inclination of experiential products, and this effect did not emerge for material products. These findings contribute to the literature on sexual objectification by showing the impact of sexual objectification on women’s economic decisions and behaviors.     

Family or friends: what counts more for drinking behaviour of young adults? / Familia o amigos: ¿qué pesa más en los hábitos de consumo de alcohol de los jóvenes?

The scientific literature stresses the importance of culture and social environment in determining what people think about alcohol consumption and consequently do. Several pieces of research have proved the influence on young adults’ alcohol use of proximal social contexts of their family and peers. The present study aimed at investigating the influence of family behaviours and norms compared to the peers’ influence in a context where the culture of alcohol is changing between the different generations. Data were collected by means of a self-report questionnaire on a sample of 598 young adults (average age 22.20 years). The variables investigated were socio-demographic characteristics, the alcohol consumption of parents and friends and the parents’ and peers’ approval of alcohol consumption. The results confirmed the role of family and friends in influencing young adults’ consumption of alcohol, stressing a difference between perceived behaviours and norms. The perceived consumption of parents and friends influenced the participants’ consumption. On the contrary, the effects of the approval of drinking were limited. Globally friends had a stronger influence on alcohol consumption in comparison with family.     

人口受教育程度对居民消费的影响研究--基于动态面板分位数回归法

本文采用1996～2015年的31个省市自治区宏观数据,使用动态面板分位数回归方法研究人口受教育程度和居民消费的数量关系。研究结果表明,人口受教育程度对消费有着较为显著的影响,且人口受教育程度对中等消费支出水平的影响略大于高、低消费支出水平的影响,这说明中等消费水平的居民消费受到人口受教育程度的影响更加敏感和有弹性。另外,模型中其他各解释变量系数在各分位数上的差异不大,说明这些影响因素对于不同消费支出水平的消费影响没有太明显差异。     

Good personal finances or a strong social capital—on different life conditions of importance for an active life when becoming alone in old age

Becoming alone in old age can be a decisive life event that brings major changes depending on various causes as health status, financial resources, family situation, and available welfare services. This article discusses the situation of older people in Sweden who have transitioned from a two-person to single-person household in recent years and what impact this might have on their everyday lives. Through in-depth interviews with 18 older people, age 67–90, their experiences about life conditions and opportunities were examined. Findings showed large differences between the men and women. They all tried to live as they always had done and they used the same personal life strategies that they always had. But the men could live as before on their own financial merits, while the women needed assistance from children, grandchildren and the welfare system. Transportation options were central and clearly related to both private economy and social services available. Shortcomings in the welfare state's way of caring for the elderly were clearly uncovered. The gap between social policy promises of opportunities for autonomy and independence to live an active life in old age and the everyday reality for older people still seems to be wide.     

Three layers of history in recurrent social movements: the case of food reform

Using the understudied genre of food reform movements for illustration, we advocate greater attention to recurrent social movements. Analysis of these movements calls for combining three levels of historical analysis. One links the incidence and character of mobilization to long-term, large-scale historical changes; the second shows how periods of activism are also animated and shaped by specific historical contexts; and the third tracks legacies from earlier to later periods, thus both tracing additional causal influences and connecting separate cases into coherent sequences. The social movements literature includes excellent examples of each type of historical account. Combining types is much less common. Doing so, we contend, offers methodological advantages for scholars comparing and sequencing mobilization around similar problems in different historical periods. We develop the argument from three eras of food protest: Grahamites in the 1830s and early 1840s, dietary reformers and food safety campaigners of the late nineteenth and early twentieth centuries, and organic advocates who gained popular support beginning in the late 1960s.     

Interacting mechanisms of time inconsistency

We interact two prominent behavioral mechanisms of time inconsistency that have been used to study inadequate saving: hyperbolic discounting and short-term planning. Hyperbolic discounting is a conventional way to model impulsive decision making, and short planning horizons have been used to represent myopia. One might expect that interacting both mechanisms within the same model would compound the inadequacy of saving. However, our key finding takes the form of a paradox: hyperbolic discounting does not affect consumption and saving allocations if the planning horizon is short and fixed, although it will affect allocations if the planning horizon is equal to the remaining life span. We demonstrate analytically that this finding is robust to the shape of the disposable income path, to the coarseness of the time grid, and to alternative forms of the period utility function.     

社会主义生态文明建设的重要内容: 生态消费模式

当前,我国消费伴随着经济的快速发展日益被异化为“病态式消费”模式,这使得国民经济的协调发展遭到了严重破坏,甚至生态系统也面临着崩溃的危险。我国新富群体缺乏正确的消费观念,加上西方消费主义影响,引发了诸多的社会问题。实践证明,只有树立正确的消费观念、克制消费欲望、调整消费行为,才能建立生态消费模式,才能符合社会主义生态文明的要求,实现人与自然的协调发展。