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91.
This study investigated the effect of institutions on the unemployment duration gap between non‐EU immigrants and native‐born in 12 European countries. Going further than the existing literature, our study encompassed unemployment duration, distinguishing between exits to inactivity, primary and secondary employment. Additionally, we have provided a stronger micro‐foundation to the comparative literature by introducing institutional measures for unemployment‐related benefits at the individual level rather than merely using aggregate proxies. Our analysis found no disincentive effects of benefits for immigrants. Furthermore, the employment prospects of immigrants were better when the demand for low‐skilled labour was high, and immigration policy was labour market‐oriented. In contrast, employment protection legislation did not affect the unemployment duration of immigrants.  相似文献   
92.
Behavior genetic designs and analysis can be used to address issues of central importance to demography. We use this methodology to document genetic influence on human fertility. Our data come from Danish twin pairs born from 1953 to 1959, measured on age at first attempt to get pregnant (FirstTry) and number of children (NumCh). Behavior genetic models were fitted using structural equation modeling and DF analysis. A consistent medium-level additive genetic influence was found for NumCh, equal across genders; a stronger genetic influence was identified for FirstTry, greater for females than for males. A bivariate analysis indicated significant shared genetic variance between NumCh and FirstTry.  相似文献   
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94.
During the Intervention Project on Absence and Well-being (IPAW), a 5-year project conducted in Denmark, we investigated psychosocial work environment factors as independent predictors of the number of absence days per year. The present two-year longitudinal study used the IPAW cohort, but was not intended to study intervention effects, which will be reported later. Data were derived from baseline questionnaires and employers' registers of absence for 1919 participants (1305 women, 614 men, mainly in low-skilled jobs) in different occupations from 52 workplaces. These workplaces included municipal care, municipal technical services and a large pharmaceutical company. Analyses were performed by Poisson regression accounting for over-dispersion. After controlling for age, family type, health behaviours and physical work environment variables, we found that high levels of decision authority predicted low absence rates in both women and men. We tested two new psychosocial constructs developed for this study: Predictability (relating to being informed on future events at work) and Meaning of Work (relating to how meaningful and useful the work is perceived to be). Higher Predictability was a significant predictor of lower absence rates in men. This study adds to the body of evidence that the psychosocial working environment influences absence and should therefore be considered to be an important target for intervention.  相似文献   
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This article discusses the carbon accounting and carbon‐labelling schemes being developed to address growing concerns over climate change. Its particular concern is their impact on small stakeholders, especially low‐income countries. The popular belief that trade is by definition problematic is not true; carbon efficiencies elsewhere in the supply chain may more than offset emissions from transportation. Indeed, low‐income countries may offer important opportunities for carbon emission reductions because of their favourable climatic conditions and use of low energy‐intensive production techniques. However, their effective inclusion in labelling schemes will require innovative solutions to provide low‐cost data collection and certification.  相似文献   
97.
This article investigates the fertility of Danish twins born during the periods 1870–1910 and 1953–64 in order to pursue two central questions for understanding human reproduction: Do genetic dispositions influence fertility and fertility-related behavior? Does the relevance of the “nature versus nurture” debate shift over time or with demographic regimes? The authors find that genetic influences on fertility exist, but that their relative magnitude and pattern are contingent on gender and on the socioeconomic environment experienced by cohorts. Among females born in 1880–90 and after 1955, about 30–50 percent of the variance in fertility is due to genetic influences; these influences are substantially smaller for earlier and for interim birth cohorts. Male fertility is generally subject to smaller genetic and larger shared-environment effects than female fertility. Because genetic effects are most prevalent in situations with deliberately controlled fertility and relatively egalitarian socioeconomic opportunities, the authors propose that the genetic dispositions affect primarily fertility behavior and motivations for having children. Analyses of fertility motivations, measured by age of first attempt to have a child, support this interpretation.  相似文献   
98.
The recognition of children's social agency and active participation in research has significantly changed children's position within the human and social sciences and led to a weakening of taken‐for‐granted assumptions found in more conventional approaches to child research. In order to hear the voices of children in the representation of their own lives it is important to employ research practices such as reflexivity and dialogue. These enable researchers to enter into children's ‘cultures of communication’. Drawing on detailed examples from an ethnographic study on child health and self‐care, the article examines issues of power, voice and representation central to the discussion of children's participation.  相似文献   
99.
The existing research on the Dyadic Adjustment Scale (DAS) indicated that there were problems with some of the subscales and individual items. This study was designed to improve the instrument by following the standards of construct hierarchy. Through previous research and the analyses in this study, the subscales were found to contain some items that were homogeneous and others that were more heterogeneous. This problem was corrected by selecting out items that were homogeneous; 7 first-order scales were created which were combined to creat the 3 second-order concepts of consensus, satisfaction, and cohesion. With a sample of distressed and nondistressed couples, a series of confirmatory factor analyses was conducted. The factor analyses provided evidence for the construct validity of the new structure of the Revised DAS (RDAS) with the distressed, nondistressed, and total samples of this study, as well as with the sample from Spanier and Thompson's (1982) study. Additional analyses correlating the RDAS with another popular marital instrument provided more evidence for the construct validity of the RDAS. Criterion validity was demonstrated by discriminant analyses results. Both internal consistency and split-half reliability estimates demonstrated that the RDAS was reliable. The result also supported dividing the RDAS into two alternative forms for use in pre- and posttest studies. Summary statistics for the RDAS are presented as are implications for the field of marriage and family therapy.  相似文献   
100.
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