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101.
Daniel Goodkind 《Demography》2017,54(4):1375-1400
China launched an unprecedented program to control its population in 1971. Experts have dismissed the official estimate of 400 million births averted by this program as greatly exaggerated yet neglect to provide their own estimates. Counterfactual projections based on fertility declines in other countries suggest that China’s program-averted population numbered 360–520 million as of 2015. The low end of this range is based on Vietnam—China’s best national comparator, with a two-child program of its own—and the high end is based on a 16-country comparator selected, ironically, by critics of the official estimate. The latter comparator further implies that China’s one-child program itself averted a population of 400 million by 2015, three-quarters of the total averted population. All such estimates are projected to double by 2060, due mostly to counterfactual population momentum. These and other findings presented herein affirm the astonishing impact of China’s draconian policy choices and challenge the current consensus that rapid socioeconomic progress drove China’s fertility well below two children per family. International comparisons of fertility and income suggest instead that China’s very low fertility arrived two or three decades too soon. If China had not harshly enforced a norm of 1.5-children during the last quarter century, most mothers would have had two children, one-half birth higher than observed. 相似文献
102.
103.
We investigate the relationship between economic freedom and international migration for the 1980–2010 period using a dataset on migration from 91 emerging countries to the 20 most attractive OECD destination countries. We find that more economic freedom at home discourages high-skilled migration, but not low-skilled migration. The negative association between economic freedom and high-skilled emigration also holds when we estimate (dynamic) panel models that allow for endogeneity in the economic freedom-migration nexus. In sum, our findings suggest that high-skilled migration is especially responsive to the economic incentives resulting from economic freedom. 相似文献
104.
Juan Leon David P. Baker Daniel Salinas Adrienne Henck 《Journal of Population Research》2017,34(4):347-372
Early in the 30-year HIV/AIDS pandemic in Sub-Saharan Africa, epidemiological studies identified formal education attainment as a risk factor: educated Sub-Saharan Africans had a higher risk of contracting HIV/AIDS than their less educated peers. Later demographic research reported that by the mid-1990s the education effect had reversed, and education began to function as a social vaccine. Recent counter-evidence finds a curvilinear pattern, with the association between educational attainment and HIV/AIDS infection changing from positive to negative across the education gradient. To reconcile these inconsistent conclusions, a hypothesis is developed and tested that education at early stages functioned as a risk factor and later functioned (and continues to function) as a social vaccine. We reason that this shift in the direction of the education effect was concurrent with changes in the public health environment in SSA that early on heightened material benefits from educational attainment but later heightened cognitive benefits from schooling. Using the 2003/2004 Demographic Health Surveys from four Sub-Saharan African countries (Cameroon, Ghana, Kenya and Tanzania), we tested this hypothesis (differential effects of schooling) using non-linear regression analysis (probit), identifying the different public health periods and controlling for confounding factors. The results support the hypothesis that the education effect shifted historically in the HIV/AIDS pandemic in SSA as we hypothesized. 相似文献
105.
Tropical forested ecosystems provide multiple ecosystem services to rural and urban landscapes, with carbon storage gaining particular attention. Deforestation due to rural-urban transitions may lead to a reduction in carbon storage ability. Coastal mangrove forests are particularly at risk from deforestation due to their location in the rapidly urbanizing coastal zone, and the city state of Singapore is an extreme example, losing as much as 90 % of its original mangrove cover due to land reclamation and reservoir construction. Knowledge of mangrove ecosystem services may allow better conservation, restoration and incorporation of remaining mangrove patches into the urban landscape. Focusing on the regulating ecosystem service of carbon storage, mangrove carbon stocks have been estimated for Singapore using a combination of field and remote sensing techniques. Biomass carbon showed substantial spatial variation, with old, contiguous mangrove patches containing a higher density of biomass carbon than fragmented, river-fringing or restored mangroves. In total, national biomass carbon equated to 116,117.1 megagrams of carbon (Mg C), and a coarse estimate of the total carbon stock (including soil carbon) suggests that Singapore’s mangroves may store 450,571.7 Mg C. While lower than other regional estimates focused on natural, oceanic mangroves, this is a significant carbon stock for a disturbed, urban mangrove system, and may be equivalent to the average annual carbon emissions of 621,000 residents. This analysis, alongside a review of other urban forest studies, highlights the importance of forested ecosystems such as mangroves in providing a carbon storage ecosystem service to urban areas. 相似文献
106.
Oliver Arránz Becker Daniel Lois Anja Steinbach 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2014,66(1):417-444
The present contribution shows conceptual and methodological approaches for the study of social context effects within families. Family members mutually constitute the social context in which family behavior and personality development take place. Social influence in families becomes evident empirically in family members’ significant similarity concerning a wide variety of characteristics. The present study focuses on intrafamily convergence with regard to religiousness. In an empirical illustration, both (a) horizontal intracouple alignment and (b) vertical intergenerational transmission processes are examined. Besides the finding that experiences during religious socialization in the parental home have a stronger impact than partner influences in adulthood, our analyses show that social context effects are more pronounced the stronger the cohesion of the respective interaction dyad is (e.g., according to measures of relationship quality). 相似文献
107.
Daniel Hammett 《International migration (Geneva, Switzerland)》2014,52(4):41-52
Transnational physician migration has concerned states' health and migration policies for many years. Recent developments have increased attention to the outcomes of these flows in the global south, where physician emigration is undermining public health policies. Cuba's exporting of medical professionals presents an alternative dynamic, based upon both an ideology of humanitarian solidarity and a need to secure hard currency earnings. The benefits and challenges arising from a bilateral agreement between Cuba and South Africa to supply Cuban doctors to South Africa and training at the Latin American Medical School (ELAM) for South African medical students are addressed. The benefits of skills enhancement and professional development are noted, as well as the economic benefits for both the Cuban government and individual doctors, while concerns with the appropriateness of the medical training provided at ELAM for the South African health context and the sustainability of the current policy are discussed.
Policy Implications
- Strategic bi‐lateral agreements offer a productive route towards more sustainable management of skilled migration.
- When migration agreements include skills training, attention is needed to ensure the training provided is appropriate to the destination context: attention needs to be paid to the appropriateness of the medical training afforded to South African medical students in Cuba for health requirements in South Africa.
- International migration agreements can form part of a broader policy suite aimed at realizing public health and other development priorities. However, attention must be paid to the suitability and sustainability of the outcomes of these practices.
108.
Daniel Kreiss 《The Sociological quarterly》2014,55(3):537-554
Following Francesca Polletta's call to reconsider participatory democracy in a new millennium, this article analyzes and makes a normative case for institutional and partisan forms of participation without decision making. I draw on field research and interviews conducted over the last decade on Democratic Party campaigns to argue against contemporary denunciations of partisanship and critiques of institutional participation by radical democrats. First, this article discusses the opportunities available for citizens to participate in electoral politics. Volunteering is often limited to fund‐raising and instrumental voter contacts given the constraints of electoral institutions. Although campaign volunteerism is a fundamentally limited form of civic engagement, institutional and partisan participation has democratic value. Campaigns are institutionally linked to political parties that offer distinct moral, ideological, and policy choices to citizens. Recent analytical and empirical work shows that contemporary political parties are constituted by relatively coherent networks of civil society and social movement organizations that devote considerable resources to electoral politics to shape primary and general election outcomes and advance their agendas in governance. This reveals electoral participation to be tightly linked to larger partisan dynamics and institutional sites of power. 相似文献
109.
Intensive and violent intergroup conflicts that rage in different parts of the world are real. These conflicts center over disagreements focusing on contradictory goals and interests in different domains and must be addressed in conflict resolution. It is well known that the disagreements could potentially be resolved if not the powerful socio-psychological barriers which fuel and maintain the conflicts. These barriers inhibit and impede progress towards peaceful settlement of the conflict. They stand as major obstacles to begin the negotiation, to continue the negotiation, to achieve an agreement and later to engage in a process of reconciliation. These barriers are found among both leaders and society members that are involved in vicious, violent and protracted intergroup conflicts. They pertain to the integrated operation of cognitive, emotional and motivational processes, combined with a pre-existing repertoire of rigid supporting beliefs, world views and emotions that result in selective, biased and distorted information processing. This processing obstructs and inhibits the penetration of new information that can potentially contribute to facilitating progress in the peace-making process. The paper elaborates on the nature of the socio-psychological barriers and proposes preliminary ideas of how to overcome them. These ideas focus on the unfreezing process which eventually may lead to cessation of adherence to the repertoire that supports the continuation of the conflict, its evaluation and arousal of the readiness to entertain of alternative beliefs that support peace making. 相似文献
110.
Daniel Hernández Rosete 《International migration (Geneva, Switzerland)》2012,50(5):142-152
The purpose of this text is to analyse the motives of seasonal migrant workers for attempting to get their wives pregnant when they return to Mexico. The meanings attributed to paternity, pregnancy and rearing are analysed from the perspective of the migrant worker and his wife. Ethnographic research was conducted in several Purépecha communities in Michoacán, supported by interviews with indigenous, who travelled to the United States for periods of up to three years, and with their wives, who stayed in Mexico. The migrant workers interviewed consider pregnancy and the paternity derived from it as an important means of male legitimization and sexual control of their wives, particularly valid in their rural communities of origin, where they know they are absentee males. When they return to Mexico they seek sexual relations for reproductive purposes, since they fear their wives will have extramarital relations in their absence. From these findings, it was considered necessary to implement sexual and reproductive health policies with pluri‐ethnic and gender approaches that take into account male beliefs and practices regarding paternity and pregnancy in a rural context. The development of sensitizing policies aimed at migrant males during their stays in Mexico is recommended. 相似文献