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1.
Lauren J. Krivo 《Demography》1995,32(4):599-615
This paper seeks to explain why Hispanic households in the United States live in housing markedly inferior to Anglos’. I argue that immigrant characteristics of Hispanic households and the metropolitan areas in which Hispanics live play important roles in determining such inequality in the housing market. Empirical analyses of homeownership, household crowding, and housing costs demonstrate that immigration plays a role in explaining relatively low homeownership and high household crowding for each of four large Hispanic populations (Mexicans, Puerto Ricans, Cubans, and other Hispanics). The role of immigrant characteristics in determining housing costs is much weaker.  相似文献   

2.
This paper, using survey data from 414 urban residents in Hong Kong, examines the effects of space, achieved privacy and satisfaction with living quarters on the perception of crowding. The results of this study suggest that occupants of spatial constrained dwellings do not necessarily feel crowded. While achieved privacy intervenes in the relationship between space and crowding, its effect is indirect and very moderate. Instead, the dissatisfaction with physical environment rather than with a quantity of space itself is a major cause of the feeling of crowdedness. These findings imply that architectural designs that meet the expectation of occupants may well alleviate feelings of crowdedness in situations of spatial constraint.  相似文献   

3.
Summary Responses to nymphal density in the determination of wing form were compared between the offspring from brachypter x brachypter crosses and those from macropter x macropter crosses of the oriental chinch bug,Cavelerius saccharivorus. In the offspring from crosses between macropters, there was a strong tendency for macropters to increase to a rather high level with increasing nymphal density in both sexes. In contrast to this, in the offspring from crosses between brachypters, the appearance rate of macropters attained a maximum value in moderately crowded conditions and conversely decreased to a lower level in more crowded conditions in both sexes. Thus density response patterns concerning the determination of wing form were quite different between the offspring from different crosses in the wing form, indicating that there is a genetic basis underlying wing polymorphism in this species. As for the body size of emerged adults, macropters tended to be larger than brachypters in the same crowded condition. Moreover, the rate of decrease of body size with nymphal density was lower in the offspring from crosses between macropters than in the offspring from crosses between brachypters. This indicated that the former offspring are more tolerant of nymphal crowding than the latter. The difference in such a tolerance against nymphal crowding between the offspring from different crosses was considered to be related to the difference in the appearance of macropters in the crowded conditions between them.  相似文献   

4.
Changes in racial differences in homeownership and objective indicators of housing quality are examined using 1960 Census data and 1977 Annual Housing Survey data. Blacks, net of differences in socioeconomic status, family composition, and regional-metropolitan location, remained less likely than whites to own homes and somewhat more likely to live in older, crowded and structurally inadequate units in 1977. In general, however, net effects for race were much smaller in 1977 than in 1960. Racial differences in homeownership and crowding were smaller among recent movers than among the total sample in 1977, suggesting continued but gradual improvement in housing conditions for blacks in the latter 1970s.  相似文献   

5.
The relationships between a set of measures of various components of environmental density and perceived crowding are examined in a data set from a sample of residents of a large metropolitan area. While there are meaningful patterns observed among the correlations, the primary finding is the weakness of the relationships between density and crowding. The implications of the weak relationship between objective and subjective measures intended to measure components of the quality of life, of which the present findings are an example, are discussed; the usefulness of subjective measures may lie primarily in their capacity to define what aspects of society should be monitored and included in a system of social accounting.  相似文献   

6.
Summary The influence of spatial distribution pattern on the outcomes of intra- and interspecific competition is studied theoretically. The models developed are the generalized logistic andVolterra equations, whereLloyd’s indices of intra- and interspecies mean crowding were incorporated with their assumed linear relationship to mean density in order to express the intensity of crowding which is really effective to the existing individuals. It is shown that while the increasing patchiness of distribution has a pronounced effect of promoting the intraspecific competition and lowering the equilibrium density for individual populations, it generally relaxes the interspecific competition, making it easy for different species sharing the same niche, which would otherwise be incompatible, to coexist stably. These models thus provide a simplest theoretical basis to explain why many insect populations in nature are kept relatively rare in number and why a number of allied species often coexist freely sharing the same resource, against the “competitive exclusion principle” deduced from the originalVolterra equations.  相似文献   

7.
Achieving adequate levels of physical activity (PA) is important to maintain health and prevent chronic disease. The costs of inadequate physical activity to the NHS have been estimated at over a billion pounds annually. While socio-demographic characteristics such as age, sex and ethnicity have been reported to be associated with different levels of PA, there is evidence that people??s social environments may also be important in encouraging a physically active lifestyle. The objective of this paper is to describe associations between the social environment and physical activity among the poorer communities in an outer London Borough, when other socio-demographic factors are controlled for. A household survey was carried out in six poorer neighbourhoods in Redbridge in 2008 as part of a wider health needs assessment. The questionnaire included questions allowing estimation of levels of physical activity as well as extent of social environment [social network score (SNS) and social support score (SSS)]. A random sample of households was taken and a total of 799 completed responses from over 16 year old were obtained. The association between physical activity and the social environment controlling for socio-demographic characteristics was estimated using a logistic nested model. Higher SNS was significantly associated with younger age, Black ethnicity, higher education level, higher household income and higher levels of PA in bivariate analyses. Higher SSS was positively associated with Indian ethnicity, higher household income and area of residence. In multivariate analyses higher levels of PA were significantly associated with wider social networks and stronger social support, educational level and marital status. Despite its limitations, our findings confirm that the relationship between low physical activity and weak social networks and low social support, observed in general population studies, also occurs in deprived communities in London. The relationship merits further exploration given the limited evidence on the effectiveness of interventions to promote physical activity.  相似文献   

8.
The study assesses housing hierarchies among immigrants in Israel by investigating three different but complementary paths: homeownership, crowding, and access to housing goods. Data from the most recent Israeli census in 1995 (the 20% version file) allows us to classify the immigrant population by 46 countries or areas of origin, each meeting the criterion of having a minimum of 100 sample cases. I controlled for several confounding factors: immigration characteristics, community of residence, demographic and human-capital variables, household composition, and housing characteristics. The results of multivariate analyses suggest that membership in approximately half of the immigrant groups has a statistically significant effect on homeownership. Representing very different origin groups from developing countries in Asia and Africa, as well as developed areas in Western Europe and America, most of the effects are negative relative to the reference group of Polish Jews. The pace of home acquisition is fastest among immigrants from several former Soviet republics and slowest among Syrian and Ethiopian Israelis. A better ethnic hierarchy was found for the other two characteristics, crowding and housing goods, with immigrants from Asia, Africa, and Eastern Europe being at a disadvantage. Many of these gaps close as immigrants purchase housing and gain tenure in Israel. The pace of advancement, however, is not uniform. I speculate that the differences in pace reflect structural characteristics, cultural background, and immigration processes, as well as absorption policy, which were not fully indexed by the census data. The discussion addresses broader implications of the findings for ethnic differences and social stratification in immigration countries.  相似文献   

9.
The relationship between migration and child health in individual countries is well known, but the cross-national variation in this relationship is largely untested. Using Demographic and Health Survey (DHS) data from 52 medium and low income countries, this study examines the effect of rural–urban migration on infant mortality and whether its effect varies cross-nationally. A secondary objective is to determine whether there is a relationship between the time a child is born in the migration process and infant mortality. Hypotheses are developed on the basis of competing theories on the relationship between migration and health. There are modest, but significant cross-national effects of rural–urban migration on infant mortality, which were better revealed in the presence of family- and child-level variables. The results also show that the unadjusted effects of rural–urban migration are quite substantial, but were largely accounted for by family- and child-level factors including education, socioeconomic status (SES), marital status, birth order, maternal age at child’s birth, and inter-births intervals. The results largely point to a selection process, which is further confirmed by results showing that the hazards of infant death increase with length of urban residence. Programs that target increasing maternal education, improving household SES, and lengthening interbirth intervals would therefore greatly benefit child survival in less developed countries.  相似文献   

10.
This paper analyses the situation when employees fail to adapt to overall job dissatisfaction. By combining the existing knowledge in economics on job lock and in psychology on employees’ feeling of being ‘stuck’ at work, the paper explains why some employees fail to adapt when dissatisfied with their job. Thus, the paper aims to expand our understanding of why some employees are job locked or are ‘stuck’ at their work even though dissatisfied. Using the British household panel survey, the possibility of falling in a job-lock state is analyzed to outline a set of factors that explain why employees differ in the way they adjust to job dissatisfaction. We divide these factors into socio-demographic features, personality attributes, type of occupation, employment conditions, type of sector, and work-related contextual features. Based on results of probit regression analysis, we provide evidence that all these group of factors can jointly predict the state of job dissatisfaction, the absence of job turnover and job lock (being ‘stuck’ at job). Moreover, our results suggest that the adaptation to job dissatisfaction could be better understood if personality attributes (such as self-esteem) are included in the analysis. Thus, this study expands our understanding of how and why employees might feel ‘stuck’ at work and fall in a state of job lock.  相似文献   

11.
Summary Apterous parthenogentic females of the pea aphid,Acyrthosiphon pisum (Harris), begin to produce alate offspring soon after they have been subjected to crowding. Females which were born early in their own parent's reproductive period respond most strongly to crowding, producing much larger numbers of alatae than their late-born sisters. In contrast, the early-born daughters of most alate females do not produce winged offspring after being crowded. Some of their later-born sisters may produce a few winged individuals, resembling in this respect the late-born daughters of the apterous females. Control of the production of alatae thus begins in the grandparental generation. Risk-spreading by means of differential dispersal becomes a less uncertain venture when local populations can modify their responses to environmental changes by utilizing past as well as present signals from their surroundings.  相似文献   

12.
In this paper the relative time cost of children compared to other types of household tasks, and the relative time cost of producing quantity rather than quality of children is examined. These propositions lie at the heart of much of the literature on the economics of fertility, but they have rarely been examined directly. We employ household time-use data from a study of a large metropolitan area in the United States. Our results cast doubt on the notions that: (a) child-services are more time-costly than other household tasks; (b) that quantity of child-services is more time-costly than quality of child-services. Moreover, there appear to be strong complementarities between child-services and other household tasks, and time spent on child care does not seem to act as an obstacle to working outside the home. Finally, we suggest another economic interpretation of the fertility transition centred not on changes in objective factors exogeneous to the household, but, instead, on the internal economic power structure of the household itself.  相似文献   

13.

This paper compares the monetary and living standards approaches to poverty using Australian data for the period 2006–2017. The aim is to highlight the conceptual and empirical strengths and weaknesses of the two approaches and identify the similarities and differences that emerge when both are applied to examine what happened over the period and to a limited degree, why. The acknowledged limitations of estimating poverty rates by comparing household income with a poverty line have to a degree been addressed by developments in deprivation research that have generated estimates that are more directly related to living standards, more democratic and more credible. But this approach also has limitations, so its growing popularity need not signify the end of poverty line studies. This paper compares the two approaches, with specific attention paid to ensuring that the estimates are internally consistent over time and comparable at a point in time. Both show a consistent pattern of modest improvement in social disadvantage over the period examined, but they reveal different aspects of change. The monetary approach highlights the role of housing costs in driving changes in poverty, while the more nuanced explanation generated by estimates of deprivation provides detailed insights. The results suggest that each has a positive role to play in better understanding the nature of poverty and identifying the factors driving change over time.

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14.
基于非线性假设的人口和碳排放关系研究   总被引:3,自引:0,他引:3  
理论和实证分析表明,人口和碳排放的关系具有动态性,碳排放量对人口要素的弹性系数是人口数量、年龄结构、家庭规模、城市化、性别结构、经济发展水平等因素的非线性函数。本文发现,基于人口和碳排放非线性关系假设构建的碳排放模型对历史数据的拟合能力明显优于传统模型,能够较好地揭示不同人口发展阶段和经济发展水平下的人口动态对于碳排放的影响。从各国人口发展实际状况出发,制定相应的减排策略是应对气候变化的必然选择。  相似文献   

15.
A recent ideological revolution promoting women’s status has raised questions concerning determinants of autonomy and their implications for policy formation. This study seeks to identify objective indicators determinant of autonomy, and then examine their relationship in light of women’s subjective experiences of autonomy. Potential determinants include education, literacy, household size, age at marriage, employment, and socioeconomic status. Analyses are based on these data sets: the 2000 Bolivia Family Interaction and Children’s Well-Being (FICW) Survey, the 2000 Peru Demographic Health Survey and the 1997/1998 Nicaraguan Demographic and Health Survey. Our findings indicate that autonomy is multidimensional. Utilizing Structural equation modeling, we identify two major domains autonomy: decision-making autonomy and personal autonomy in Bolivia, and family autonomy and public autonomy in Nicaragua and Peru. This study shows that each of our specified determinants has some influence on autonomy, with education and socioeconomic status being the most important. We conclude that policies designed to change educational, economic, and familial characteristics of women will only have a modest impact on women’s overall sense of autonomy.  相似文献   

16.

The child poverty rate has increased noticeably in Finland since the mid-1990s, and there are numerous studies in this area. However, little is known about child poverty in the two native and equal population groups, Finnish speakers and Swedish speakers. Using detailed register-based data that cover the period 1987–2011, we analyze how child poverty depends on parental ethno-linguistic affiliation, and whether there is variation in income poverty across these households over time. The poverty measure is relative and based on equalized taxable household income of households with children. Odds of poverty are estimated with logistic regression models using generalized estimating equations to account for repeated observations at the household level. The analyses are restricted to areas with both Swedish- and Finnish-speaking settlement. Single-parent and two-parent households are analyzed separately. Poverty rates increased in all major types of households during the study period, but variation by ethno-linguistic affiliation was fairly modest. Swedish-speaking single-parent and two-parent households experienced a smaller increase in the poverty rate than Finnish-speaking ones, while patterns observed for exogamous households were less clear. The contribution of control variables on the ethno-linguistic poverty differences was modest. Considering that the ethno-linguistic groups studied are indigenous and equal, the small differences in poverty rates between Finnish speakers and Swedish speakers are evidence of a democratic and well-functioning welfare state, although the increasing overall poverty rates over time require future scrutiny by both policy makers and researchers.

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17.
Using data from the 1996–2008 panels of the Survey of Income and Program Participation and the 2009–2016 American Community Survey, we examine trends in U.S. children living in shared households (living with adults beyond their nuclear (parent/parent’s partner/sibling) family). We find that although the share of children who lived in a shared household increased over this period, the rise was nearly entirely driven by an increase in three-generation/multigenerational households (coresident grandparent(s), parent(s), and child). In 1996, 5.7 % of children lived in a three-generation household; by 2016, 9.8 % did likewise—more than a 4 percentage point increase. More economically advantaged groups (older, more educated mothers, married households) experienced the largest percentage increase in three-generation coresidence, although correlates of coresidence remained largely stable. Decomposition analyses suggest that the rise in Social Security receipt and changes in parental relationship status (less marriage, more single parenthood) most strongly explained the increase in three-generation households. Given the dramatic rise in three-generation households, more research is needed to understand the consequences of these living arrangements for children, their parents, and their grandparents.  相似文献   

18.
本文使用了2009~2014年江苏省44个县市的数据①,利用面板数据进行回归分析,证明了地方教育财政支出会受到流动人口、地方经济发展等因素影响;人口流动会对人口流入地县市产生教育资源挤占效应,地方政府基础教育财政支出可能存在自利性动机,为了实现本地利益最大化,会对流动人口子女在本地入学设置相关门槛;这些发现表明,我们在发展地方经济、加大转移支付及实现义务教育经费随学籍走制度的同时,需要对产生问题的根源户籍制度进行改革,接纳农民工子女进入本地公立学校,才能实现中央“两为主”政策的教育公平目标。  相似文献   

19.
From a recent Ethiopian representative household survey this paper empirically operationalizes concepts from the capability approach to shed light on the relationship between conversion factors, capability inputs and health functionings. The subjects of the study are women in partnership. The results suggest their health functionings are responsive to specific household bargaining power conversion factors and capability inputs. The paper also tests the extent to which women who take more decisions achieve better health functioning. The model offers evidence that decision-making and health functionings follow a complex pattern as women who took more decisions were not always better off. The conclusion of the paper is that health functioning may be improved by inducing changes to household decision-making patterns.  相似文献   

20.
This study analyses the relationship between subjective and objective measures of well-being in selected European countries using the data of the European Community Household Panel (ECHP). In the first part of the paper, we develop a random-effect ordered probit model, separately for each country, relating the subjective measure of income satisfaction to actual income, and controlling for some individual and household socio-demographic fixed effects. In the second part of the paper, we fit a Bayesian cross-classified multilevel model, in order to control for intra-family correlation in subjective well-being, which actually appears to be present. The research was financially supported by the Italian Ministry of University and Scientific Research and by the 5th European Research Programme (FELICIE – Future Elderly Living Conditions In Europe, No. QLRT-2001-02310, http://www.felicie.org). We gratefully acknowledge the contribution of an anonymous referee.  相似文献   

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