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The use of oil has changed world economies, social and political structures, and lifestyles beyond the effect of any other substance in such a short time. But oil supplies are limited. The peak of world oil production and the beginning of the irreversible decline of oil availability is clearly in sight. This paper examines the role of oil in two contexts: Its importance in countries almost entirely dependent on oil income, and the role of oil in world agricultural productivity. Possible alternatives to oil and its close associate, natural gas, are also examined. Countries almost solely dependent on oil income are chiefly those of the Persian Gulf region. The prosperity which oil has brought to these nations has resulted in a rapidly growing population which is not sustainable without oil revenues. World agriculture is now highly dependent on oil and natural gas for fertilizers and pesticides. Without these, agricultural productivity would markedly decline. As a base for the production of these materials, oil and natural gas are irreplaceable. Lifestyles and affluence in the post-petroleum paradigm will be quite different from today. World population will have to be reduced if it is to exist at any reasonable standard of living. At that time concern will be much more centered on obtaining basic resources, especially agricultural, by which to survive.  相似文献   

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The effect of compulsory schooling on health—evidence from biomarkers   总被引:1,自引:1,他引:0  
Using data from the Health Survey for England and the English Longitudinal Study on Ageing, we estimate causal effects of schooling on health. Our study complements earlier studies exploiting two nationwide increases in British compulsory school leaving age in 1947 and 1973, respectively, by using biological stress markers as measures of health outcomes in addition to self-reported measures. We find a strong positive correlation between education and health, both self-rated and measured by blood fibrinogen and C-reactive protein levels. However, causal effects estimates based on compulsory schooling changes are ambiguous and remain statistically insignificant.  相似文献   

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SurnameReformandFamilyPlanning—ViewsfromContributorsTraditionalsurnamesystemandtheidearegardingmenassuperiortowomenhaveruledC...  相似文献   

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This paper estimates the health returns to schooling, using a twin design. For this purpose, I use data on monozygotic twins from the Midlife in the United States survey. The results suggest that completing high school improves health, as measured through self-reported health, chronic conditions, and exercise behavior, but that additional schooling does not lead to additional health gains. Controlling for certain early life factors that may vary within twin pairs does not alter the main conclusions of this paper.  相似文献   

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Previous research has shown adverse effects of growing up under unilateral divorce laws on long-term outcomes of children. It remains an open question of whether these effects of early childhood conditions arise due to divorce laws raising the likelihood of parental marital disruption or whether unilateral divorce laws also affect children in intact marriages by changing intra-household bargaining. Using recently available data from SHARELIFE for 11 Western European countries, we address this question employing a difference-in-differences approach and controlling for childhood family structure and socioeconomic status. Like previous research, we find adverse effects of growing up under unilateral divorce laws on the well-being of children. This effect remains even when controlling for childhood variables. We conclude that unilateral divorce laws affect children by changing family bargaining in intact marriages.  相似文献   

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Since the positive psychology was emerged from 2000s, these positive constructs contribute to athlete’s well-being received much attention in sport. However, gratitude is a topic rarely discussed in the sport psychology. Thus, the current study aims at investigated the relationship between gratitude and athlete well-being. Furthermore, the mechanisms underlie the relationship was also explored. We proposed that the perceived social support from coach and teammate would be mediators. Participants were 291 adolescent athletes. Structural equation modeling was used to examine the hypothesis. Results indicated that gratitude is a positive related to athlete’s well-being. Besides, multiple-mediators analysis indicated that both perceived coach and teammate social support partially mediated the relationship between gratitude and athlete’s well-being. This study contributes to the gratitude and well-being literature by unpacking the essential psychological process behind the relationship. Implication and application were discussed in term of gratitude theory and social support.  相似文献   

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Introduction One of the principal objectives of the ICPD Program of Action is to provide quality and client-centred reproductive health services to enable women and couples to have informed contraceptive choices and the means to access a wide range of methods, without any form of discrimination or compulsion. The UNFPA launched its fifth country program in China during 2003 in 30 counties selected on the basis of their willingness and leadership commitment to move towards the ICPD prin…  相似文献   

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This paper investigates the causal effect of improvements in health on economic development using a long panel of European countries. Identification is based on the particular timing of the introduction of public health care systems in different countries, which is the random outcome of a political process. We document that the introduction of public health care systems had a significant immediate effect on health dynamics proxied by infant mortality and crude death rates. The findings suggest that health improvements had a positive effect on growth in income per capita and aggregate income.  相似文献   

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Exploiting the exogenous variation in user fees caused by a Swedish childcare reform, we are able to identify the causal effect of childcare costs on fertility in a context in which childcare enrollment is almost universal, user fees are low, and labor force participation of mothers is very high. Anticipation of a reduction in childcare costs increased the number of first and higher-order births, but only seemed to affect the timing of second births. For families with many children we also find a marginally significant negative income effect on fertility.  相似文献   

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Prior research and managerial practices have often over-emphasized employees’ performance and ignored their occupational well-being. However, a series of employee suicide scandals in China have drawn people’s attention to employees’ occupational well-being and heightened the importance of how ethical leadership can enhance such well-being. Based on social exchange theory, this study examined the main effect of ethical leadership on subordinates’ occupational well-being in China, as well as the underlying mechanisms and contextual factors between them. Our sample comprised 302 employee questionnaires and 34 questionnaires completed by supervisors about their group. Using a multi-level approach, we implemented hierarchical linear modeling to examine the hypotheses. The results revealed that ethical leadership positively influenced the subordinates’ occupational well-being. This effect was partially mediated by distributive justice and interpersonal justice. Moreover, group level collectivism moderated the influence of ethical leadership on employees’ perception of distributive justice, interpersonal justice and their occupational well-being.  相似文献   

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This study presents an evolutionary process of secularization assuming that cultural/social/religious norms (in particular the ‘religious taste for children’) are transmitted from one generation to the next via two venues: (i) direct socialization—across generations, by parents; and (ii) oblique socialization—within generations, by the cultural environment. The paper integrates a theoretical model, simulations and an empirical estimation, that lead to the following main findings: (i) direct religious socialization efforts of one generation have a negative effect on secularization within the next generation; (ii) oblique socialization by the community has a parabolic effect on secularization; and (iii) the two types of socialization are complementary in ‘producing’ religiosity in the next generation.  相似文献   

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There are obvious reasons why residential construction should depend on the population’s age structure. We estimate this relation on Swedish time series data and Organization for Economic Cooperation and Development panel data. Large groups of young adults are associated with higher rates of residential construction, but there is also a significant negative effect from those above 75. Age effects on residential investment are robust and forecast well out-of-sample in contrast to the corresponding house price results. This may explain why the debate around house prices and demography has been rather inconclusive. Rapidly aging populations in the industrialized world makes the future look bleak for the construction industry.
Bo MalmbergEmail:
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