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51.
An important aim of Norwegian work–family policies is to enhance the family role of fathers. Time-use surveys show a slight increase in fathers’ family work, but we still know little about the relationship between men's family circumstances and working hours. On the one hand, policy measures encourage the greater involvement of fathers in family life. On the other hand, men are the main providers in most couples and employment and breadwinning are still important components of men's fathering identity. In this paper, we examine the relationship between fatherhood and working time, with a particular focus on the possible effects of the number and ages of children. Utilizing the Norwegian Labour Force Survey 2005, we find that men's contractual working hours are not significantly affected by their parental status, but men do curtail their actual working hours when they have young children, and particularly if there is only one child in the household. However, men with school-aged children actually work longer hours than non-fathers and men with young children. 相似文献
52.
Randomly generated points in Rd are connected to their nearest neighbours (Euclidean distance). The resulting connected clusters of points are studied. This paper examines questions related to the collection of clusters formed and to the internal structure of a cluster. In particular, the one-dimensional structure is examined in detail. 相似文献
53.
Lars Engwall 《Omega》1978,6(6):485-491
A basic argument of this paper is that organizations are under pressure to increase their revenues because of rising aspirations of those who provide goods and services to the organization. The paper then presents an analytical tool which can be used to identify different strategic alternatives for handling the described situation. These alternatives can be classified into three main categories: customer oriented, technology oriented and provider oriented strategies. The application of the method is illustrated by an application to the situation of the newspaper industry. 相似文献
54.
Lars Janzik Cornelius Herstatt Antje-Christina Raasch 《Zeitschrift für Betriebswirtschaft》2011,81(5):47
For companies, online communities (OCs) have become a potent means of rapidly and easily identifying user needs as a result of the social and technological changes within the Web 2.0. Some OCs even are suited ideally for integration into NPD as they frequently have innovative members. Despite their growing relevance, however, user innovation activities within OCs still are underexplored. The members’ motivations to innovate and contribute to OCs in particular are part of a young line of research requiring further investigation. This research provides an in-depth netnographic analysis of innovative, privately operated OCs dedicated to tangible consumer products. Most fundamentally, we differentiate 1) motives to join OCs, 2) motives to innovate, and 3) motives to publish innovations in OCs. This is the first study to categorize the motives of innovative OC members depending on the stages of their membership as well as situational factors. Our results support companies in understanding and classifying the members’ motives in independent customer OCs. This is a precondition for the development of specific incentives that stimulate innovative user activities in OCs and contribute to customer integration. 相似文献
55.
Inter-generational effects of disability benefits: evidence from Canadian social assistance programs
Individuals with disabilities face greater challenges in the labor market than able-bodied individuals, and a growing body of research is finding that their children also tend to have more developmental problems than the children of able-bodied parents. Can transfer payments help reduce this gap? In this paper, we present the first evidence on how parental disability benefits affect the well-being of children. Using changes in real benefits under ten disability benefit programs in Canada as an identification strategy and Statistics Canada’s National Longitudinal Survey of Children and Youth (NLSCY) as the data source on child outcomes, we find strong evidence that higher benefits lead to improvements in children’s cognitive and non-cognitive development, as measured by math scores in standardized tests, hyperactive symptoms, and emotional anxiety behavior. The effect is larger on children with a disabled mother than on those with a disabled father. 相似文献
56.
We study classes of voting situations where agents may exhibit a systematic inability to distinguish between the elements
of certain sets of alternatives. These sets of alternatives may differ from voter to voter, thus resulting in personalized
families of preferences. We study the properties of the majority relation when defined on restricted domains that are the
cartesian product of preference families, each one reflecting the corresponding agent’s objective indifferences, and otherwise
allowing for all possible (strict) preference relations among alternatives. We present necessary and sufficient conditions
on the preference domains of this type, guaranteeing that majority rule is quasi-transitive and thus the existence of Condorcet
winners at any profile in the domain, and for any finite subset of alternatives. Finally, we compare our proposed restrictions
with others in the literature, to conclude that they are independent of any previously discussed domain restriction. 相似文献
57.
In this commentary we discuss and elaborate on a number of topics that have been raised in the articles in this issue. The first topic treated is causality. All scientists are aware of the difficulties of making causal inferences in non‐experimental settings, and in many cases arguments are forwarded that support the causal interpretation of the reported relationships. Questions of bi‐directional causality, nonlinear relationships and the importance of omitted variables are discussed, as is the supporting evidence that in some cases comes from experimental studies. The second topic is the level of analysis employed in the empirical analyses and the difficulty of interpreting findings at a different level of aggregation than the level applied in these analyses. In this context, the importance of applying a person‐orientation is pointed out to ensure that the findings are interpretable at the level of the single individual. Even in individual‐level analyses, this can be problematic if one relies on group statistics produced within a variable‐oriented framework. The third topic concerns how to handle interactions and nonlinear relationships. The fourth topic concerns the importance of improving measurements so that a good correspondence is achieved between them and the theoretical conceptualisations. The fifth and last topic is concerned with the argument that different ways of investigating the generalisability of the results to different populations should be tried. 相似文献
58.
Lars Ehlers 《Social Choice and Welfare》2002,19(2):325-348
We consider the problem of allocating an infinitely divisible endowment among a group of agents with single-dipped preferences.
A probabilistic allocation rule assigns a probability distribution over the set of possible allocations to every preference
profile. We discuss characterizations of the classes of Pareto-optimal and strategy-proof probabilistic rules which satisfy in addition replacement-domination or no-envy. Interestingly, these results also apply to problems of allocating finitely many identical indivisible objects – to probabilistic
and to deterministic allocation.
Received: 23 November 1998/Accepted: 20 October 2000 相似文献
59.
In this paper, we discuss the experiences of physically disabled mothers. We interviewed 30 women in the age group 28-49 with medical diagnoses such as: multiple sclerosis, neuromuscular diseases, cerebral palsy and spinal cord injury Becoming a mother implied for many 'capturing' a gender or 'recapturing' a lost gender. They women felt they had to go to great lengths to 'present' themselves and their children as managing 'normally' in order to be accepted as 'ordinary' mothers. Eventually, they feared that their children might be taken away from them if they did not live up to other people's expectations. One possible explanation for what they experienced as other people's scepticism might be that disabled people on the whole are primarily still looked upon as being dependent on other people's help and care. In short, they are often looked upon by professionals and lay people as receivers, and not as carers. 相似文献
60.
Fyrand Live Wichstrøm Lars Moum Torbjørn Glennås Ann Kvien Tore K. 《Social indicators research》1997,40(3):285-298
The relationship between personality traits, social support and mental health problems was studied in 138 female patients
with rheumatoid arthritis (RA).
Structural equation modelling showed that instrumental support was uncorrelated with mental health problems. The effect of
emotional support on mental health was spurious and due to personality traits. Companionship had a direct effect on mental
health in addition to partially mediating the effects of both extra-version and neuroticism. However, the total effect of
social support was moderate compared to a strong influence of neuroticism. The therapeutical implications are discussed.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献