Recent European fertility patterns: fitting curves to 'distorted' distributions

Recent patterns of fertility in Europe show marked differences between countries. Recent United Kingdom and Irish fertility curves show 'distortions' in terms of a 'bulge' in early age fertility, distinct from the smoother curves of other European countries. These patterns may not be adequately described by mathematical functions used by previous studies to model fertility curves. A mixture model with two component distributions may be more appropriate. The suitability of the simple and mixture Hadwiger functions is examined in relation to the fertility curves of a number of European countries. While the simple Hadwiger model fits recent period age-specific fertility distributions for some countries, others which display a 'bulge' in early age fertility distributions for some countries, others which display a 'bulg' in early age fertility require a mixture Hadwiger model. Some of the parameters of the Hadwiger models appear to be related to familiar demographic indices. The simple and mixture Hadwiger models appear useful in describing and comparing fertility patterns across European countries.     

An advertising effect model

A model of advertising effects has been developed based on a distinction between “persuasion” advertising and “trigger” advertising. The former is designed to induce prospective purchasers to try the product and to establish a “product image”. The latter is aimed at “triggering” a purchase on the part of an individual whose image of the product has already been formed. The distinction has major implications for the type and timing of advertising. The model can be applied to determining an optimum distribution of advertising effort in the introduction of a new product, and the optimum advertising media mix.     

Total business strategy—the missing link

‘Total Business Strategy’ is the missing link between the aloof ‘Mission Statement’ and the particular ‘Functional Strategies’, that will make strategy formulation more implementation oriented. Total Business Strategy addresses five strategic questions:

• 1. 

  1.|What are our markets? What are the needs (existing or to be developed) of the markets and customers that our firm wants to satisfy?

• 2. 

  2.|What should be our ‘generic’ competitive advantage?

• 3. 

  3.|Are we going to be technology leaders or followers?

• 4. 

  4.|What is our attitute to risk? What risks, and to what extent are we willing to take?

• 5. 

  5.|What are our long range quantitative targets?

     

The Distress and the Meaning Making of Divorced Abused Arab Women in Israel

Women’s divorce in the Arab society in Israel goes against patriarchal social values. The aim of this research is to explore the meaning that abused Arab women gave to their divorce. The present study based on interviews with 13 women, who had been divorced for 2 to 5 years. Analysis revealed that the women perceived their coping as navigation between the cost of stigma and familial and social distress, and the gains of their connection to sources of strength and self-worth. The discussion based on the interviewees’ existential experience their self-identity as meaning makers and choosers.     

Volunteers and the risk of posttraumatic stress disorder

Symptoms of posttraumatic stress disorder (PTSD) result from exposure to a traumatic event and influence a person's ability to cope psychologically. Recent documentation from emergency rooms shows that medical personnel, including volunteers who treated severely injured people, can develop symptoms of PTSD even though the volunteers themselves were not personally subjected to the stressful event. This article finds similar results among adolescents who volunteered with Magen David Adom (MDA), Israel's national emergency medical, disaster, ambulance, and blood bank service. Because of the security threats Israel has faced, these adolescents are likely to be exposed to traumatic events during their volunteer service, and some may develop PTSD. This article explores who is most susceptible to developing PTSD and the underlying theories of why that may be the case. Since the adolescents' motives to volunteer vary, the article proposes that volunteers with certain motives retain their enthusiasm for volunteering despite the danger of developing PTSD symptoms. It also finds that some of the motives to volunteer correlated with a reduction in the level of PTSD symptoms. Understanding the adolescents' motivations to volunteer will help nonprofit leaders and managers allocate volunteers according to their motivations and the levels of threat a particular job entails.     

Community Cleavages: Gay and Bisexual Men’s Perceptions of Gay and Mainstream Community Acceptance in the Post-AIDS,Post-Rights Era

Changes in gay and bisexual men’s connectedness to the gay community are related to the declining public visibility of HIV/AIDS and greater acceptance for homosexuality and bisexuality in mainstream society. Little work, however, has focused on perceived acceptance for subgroups within the gay community or broader society. Using interviews (n = 20) and a survey (n = 202) of gay and bisexual men in a mid-sized Canadian city, we find perceived hierarchies of acceptance for the various subgroups as well as an age effect wherein middle-aged men perceive the least acceptance for all groups. These differences are linked with the uneven impact of social, political, and institutional changes relevant to gay and bisexual men in Canada.     

Similar Others in Same-Sex Couples’ Social Networks

Same-sex couples experience unique minority stressors. It is known that strong social networks facilitate access to psychosocial resources that help people reduce and manage stress. However, little is known about the social networks of same-sex couples, in particular their connections to other same-sex couples, which is important to understand given that the presence of similar others in social networks can ameliorate social stress for stigmatized populations. In this brief report, we present data from a diverse sample of 120 same-sex couples in Atlanta and San Francisco. The median number of other same-sex couples known was 12; couples where one partner was non-Hispanic White and the other a person of color knew relatively few other same-sex couples; and there was a high degree of homophily within the social networks of same-sex couples. These data establish a useful starting point for future investigations of couples’ social networks, especially couples whose relationships are stigmatized or marginalized in some way. Better understandings of the size, composition, and functions of same-sex couples’ social networks are critically needed.     

Financial Responsibilities Toward Older Parents and Stepparents Following Divorce and Remarriage

We assessed beliefs about adult children’s responsibilities to financially assist parents and stepparents following later-life divorce and remarriage using a multiple-segment factorial vignette with a national sample (N = 1,121). Ordered logistic regression analyses indicated that beliefs about financial responsibilities to older adults declined after marital transitions, and responsibilities to assist stepparents were more tenuous than to parents. Beliefs about intergenerational responsibilities were affected by adult children’s financial resources and by changes in older adults’ marital statuses. Kinship obligation norms, the adult children’s financial resources, and reciprocity norms were the most common reasons used to explain beliefs about responsibilities to financially assist older parents and stepparents, but these reasons became less salient following divorce and remarriage of the older adult. After marital transitions, beliefs about intergenerational financial responsibilities were more often based on the older adult’s culpability for being in a position of need, relationship quality, and diminished kinship obligations.     

The use of sparsest cuts to reveal the hierarchical community structure of social networks

We show that good community structures can be obtained by partitioning a social network in a succession of divisive sparsest cuts. A network flow algorithm based on fundamental principles of graph theory is introduced to identify the sparsest cuts and an underlying hierarchical community structure of the network via maximum concurrent flow. Matula [Matula, David W., 1985. Concurrent flow and concurrent connectivity in graphs. In: Alavi, Y., et al. (Eds.), Graph Theory and its Applications to Algorithms and Computer Science. Wiley, New York, NY, pp. 543–559.] established the maximum concurrent flow problem (MCFP), and papers on divisive vs. agglomerative average-linkage hierarchical clustering [e.g., Matula, David W., 1983. Cluster validity by concurrent chaining. In: Felsenstein, J. (Ed.), Numerical Taxonomy: Proc. of the NATO Adv. Study Inst., vol. 1. Springer-Verlag, New York, pp. 156–166 (Proceedings of NATO ASI Series G); Matula, David W., 1986. Divisive vs. agglomerative average linkage hierarchical clustering. In: Gaul, W., and Schader, M. (Eds.), Classification as a Tool of Research. Elsevier, North-Holland, Amsterdam, pp. 289–301; Thompson, Byron J., 1985. A flow rerouting algorithm for the maximum concurrent flow problem with variable capacities and demands, and its application to cluster analysis. Master Thesis. School of Engineering and Applied Science, Southern Methodist University] provide the basis for partitioning a social network by way of sparsest cuts and/or maximum concurrent flow.