Urban temporary out-migration under economic reforms: Who moves and for what reasons?

Studies of temporary migration in developing countries often focus on rural outmigration and are preoccupied with problems it may bring to cities. Using a unique data set from two surveys conducted in Zhejiang province, China, this paper examines the other side of the coin — temporary migration from urban places — and thereby provides an important complement to studies focusing on rural-urban migration. The analysis identifies three types of temporary migrations: on-business, economic, and family-related. Using multinomial logit model, the analysis suggests that the three types of temporary migration differ significantly from each other in both their causes and migrants' socioeconomic characteristics; so does urban-urban migration from urban-rural migration. The considerable urban-rural temporary migration attests to the fact that temporary migration is not a one-way process; its positive selectivity further indicates that a considerable human capital flows from urban to rural areas through urban-rural temporary migration, which provides rural areas much needed science and technology and becomes an important facilitating factor of rural socioeconomic development.This article is based on a paper, presented at the meetings of the American Sociological Association, Pittsburgh, August 1992.     

Migration and population ageing: a case of Poland

The effect of internal migration on population aging in Poland is assessed, using data for the years 1950-1988. Trends are presented for the country as a whole, by individual voivodship, and for rural regions that have experienced rapid depopulation. The authors conclude that "internal migrations have no direct influence on the population's ageing process, and [are] insignificant. The influence grows in the spatial perspective; it becomes strongest in the case of migrations between urban and rural areas. Its intensity is best revealed in the...depopulation in rural areas."     

Effects of changes in rainfall and temperature on age- and sex-specific patterns of rural-urban migration in sub-Saharan Africa

We evaluate how changes in weather patterns affected rural-urban migration across 41 sub-Saharan African countries, by age and sex, over the 1980–2015 period. We combine recent age- and sex-specific estimates of net rural-urban migration with historical data on rainfall and temperature from the Climate Research Unit (CRU). We also compare standard unweighted estimates of rainfall and temperature to estimates weighted by the proportion of the country’s total rural population in the CRU grid. Results show that rural out-migration of young adults is the most sensitive to shifts in weather patterns, with lower rainfall, lower variability in rainfall, and higher temperatures increasing subsequent rural out-migration—though the last of these is not observed in weighted models. The strength of these effects has grown stronger over time for 20–24 year olds, though weaker above age 30. In contrast, increasing temperature variability is associated with a higher rural in-migration of children (0–9) and older adults (55–64). Gender differences in these effects are minimal and concentrated in areas which experienced heavy reductions in rainfall.

     

进城还是回村？——跨省婚迁者的空间选择

在经济社会转型、人口频繁流动的条件下,婚迁由乡到城的单向迁移转变成为城乡互动的双向流动。婚迁者留在城市还是回到乡村,要取决于多种条件。本研究通过测度跨省婚迁的性别比发现,自1990年来的20年间我国省际婚迁性别比下降近一半。全国省际婚迁性别比呈现城市-城镇-乡村两端大中间小的“微笑曲线”。在婚迁的空间选择上,男性以城市为主,女性则以乡村为主。进一步分析影响婚姻迁移的因素发现,经济变量中人均GDP对总婚迁和城市婚迁呈正向影响,城镇和乡村呈负向影响;居民收入和消费状况对婚姻迁移产生正向影响,但消费的城乡差别则对其产生负向影响;人口的城乡流动与迁移以及社会变量中各因素对跨省婚迁产生正向影响,而文化变量中的各因素则形成负向影响。     

上海市人户分离状况的空间特征分析——基于“六普”数据

＂六普＂数据显示,近几年上海市人户分离状况呈现出新的空间特征,主要表现在：人户分离人口的规模和迁移率在空间分布上呈现出严重的不均衡;大部分区县人户分离人口的来源地及迁居目的地集中化程度高,具有＂近邻优先＂的特点;逐步形成由中心城区县流向近郊区区县和中心城区县之间相互流动的两大迁移圈;中心城核心区、边缘区、近郊区、远郊区等四大区域之间的人户分离人口流动呈现出三大迁居主流。本文在总结这些空间特征的同时,就如何解决上海市人户分离问题提出了几点建议,以期上海市内户籍人口的迁移能科学健康有序进行。     

Environmental Protection,Population Change,and Economic Development in the Rural Western United States

This research analyzes the relationship between protected federal lands (wilderness, national parks, national monuments and roadless areas) and nearby communities in the rural western United States. Opponents of environmental protection claim that protected lands limit the growth of nearby communities by locking up potentially valuable natural resources and restricting mining, logging and grazing. Others claim that extractive industries are no longer the backbone of rural economies— instead, the presence of protected federal lands encourages growth by attracting tourists and new residents. A geographic information system is used to calculate the proportion of protected lands occurring within 50 miles of the center of each western county. This calculation, in combination with detailed county-level data, indicates that environmental protection is correlated with relatively rapid population growth and with relatively rapid income and employment growth.     

Neighborhood Social Change and Perceptions of Environmental Degradation

This paper investigates how changes in neighborhood facilities—new schools, health posts, bus services, mills, dairies, agricultural cooperatives, and other facilities—influence perceptions of environmental degradation. We use three types of data from a rural area in Nepal: (1) data on changing neighborhood facilities from 171 neighborhoods, collected using ethnographic, survey, and archival methods; (2) survey data on household characteristics and environmental perceptions from 1,651 households; and (3) individual-level survey data. We find that new neighborhood facilities are associated with perceptions of environmental degradation. This is important because perceptions may indicate objective environmental degradation, encourage participation in programs to improve the environmental, and influence environmental behavior.     

Multiple Meanings of Minority Concentration: Incorporating Contextual Explanations into the Analysis of Individual-Level U.S. Black Mortality Outcomes

Prior research on mortality for U.S. blacks focuses on the detrimental effects of minority concentration and residential segregation in metropolitan areas on health outcomes. To date, few studies have examined this relationship outside of large U.S. central cities. In this paper, we extend current research on the minority concentration and mortality relationship to explain the rural advantage in mortality for nonmetropolitan blacks. Using data from the 1986–1994 linked National Health Interview Survey/National Death Index, we examine the rural-urban gap in mortality for U.S. blacks. Our findings indicate that blacks in nonmetropolitan areas experience a lower risk of mortality than metropolitan central city blacks after indicators of socio-economic and health status are controlled. Our findings also point to the importance of accounting for contextual factors. Net of individual level controls, minority concentration exerts differential effects across metropolitan and nonmetropolitan areas, such that nonmetropolitan black residents experience a lower risk of mortality in high minority concentration areas than blacks in metropolitan central city areas. This finding suggests a reconceptualization of the meaning for minority concentration with respect to studies of health outcomes in nonmetropolitan communities.     

交通基础设施对农户人力资本投资的影响——基于准自然实验的因果推断分析

使用CFPS 2010和CFPS 2014家庭面板数据,以开通公路和公交作为准自然实验,研究了交通基础设施对农户人力资本投资的影响。基于PSM-DID方法的结果表明:通过增收效应和文化冲击等途径,交通基础设施能够显著改善农户的教育观;进而促进农户提高物质和非物质人力资本投资;这有利于端正农村青少年的学习态度,并最终有利于提高农村青少年学业成绩。所以应继续加强城乡间交通基础设施建设,以激发农户和农村青少年对教育的内生追求动力,促进农村人力资本积累。这不仅有利于推动教育公平,也有利于为“三农”注入内生发展动力,具有一定的社会和经济意义。     

Disasters,migrations, and the unintended consequences of urbanization: What’s the harm in getting out of harm’s way?

Under many circumstances, the global rural-to-urban migration trend may be increasingly adopted as a short-term coping strategy to shifting ecologies and natural disasters. While offering certain benefits from macro-level economic and public health perspectives, these migrations may also have unintended psychological consequences that are not easily understood through traditional disaster studies or cost–benefit analyses. If the goal of disaster and climate change research is to promote successful adaptation, then the long-term psychological well-being of people who have survived disaster and either adapted in situ or migrated into urban environments, is paramount. This article integrates research on disasters and climate change-induced migration with emerging perspectives from environmental psychology and the psychology of natural disasters to consider the potential costs of particular migration scenarios. We apply this analysis to the case of Shishmaref, Alaska, a rural Iñupiat community on the northwest coast of Alaska facing habitual flooding disasters linked to climate change. Findings from Shishmaref illustrate the cultural vitality of subsistence landscapes and the potential health risks of compromised human–ecological relationships due to migration and/or displacement. Recommendations for policy makers and researchers are offered for promoting long-term well-being among affected individuals and communities.     

农村社会保障制度框架构建研究

在我国农村人口结构发生重大变化、农村人口比重下降、人口老龄化严重、农村家庭规模日趋小型化的情况下,农民明显存在养老、疾病和贫困风险。按全面建设小康社会、实现城乡和经济社会协调可持续发展的要求,必须加快构建农村社会保障体系,制订近期和中长期目标,明确以社会保险作为保障制度的主要模式,建立包括农村养老保险、医疗保障和最低生活保障制度为基本内容的制度框架。     

Migration,Marital Change,and HIV Infection in Malawi

Research on the relationship between migration and HIV infection in sub-Saharan Africa often suggests that migrants are at higher risk of HIV infection because they are more likely to engage in HIV risk behaviors than nonmigrants, and they tend to move to areas with a relatively higher HIV prevalence. Although migration may be a risk factor for HIV infection, I instead focus on the possibility that the HIV positive are more likely to migrate. Using a longitudinal data set of permanent rural residents and migrants from Malawi, I find that migrants originating from rural areas are indeed more likely than nonmigrants to be HIV positive and to have engaged in HIV risk behaviors. The increased HIV risk among migrants may be due to the selection of HIV-positive individuals into migration; I find that HIV-positive individuals are more likely to migrate than those who are HIV negative. The explanation for this phenomenon appears to be marital instability, which occurs more frequently among HIV-positive individuals and leads to migration after marital change.     

Do Rainfall Deficits Predict U.S.-Bound Migration from Rural Mexico? Evidence from the Mexican Census

Environmental and climatic changes have shaped human mobility for thousands of years and research on the migration-environment connection has proliferated in the past several years. Even so, little work has focused on Latin America or on international movement. Given rural Mexico’s dependency on primary sector activities involving various natural resources, and the existence of well-established transnational migrant networks, we investigate the association between rainfall patterns and U.S.-bound migration from rural locales, a topic of increasing policy relevance. The new economics of labor migration theory provides background, positing that migration represents a household-level risk management strategy. We use data from the year 2000 Mexican census for rural localities and socioeconomic and state-level precipitation data provided by the Mexican National Institute for Statistics and Geography. Multilevel models assess the impact of rainfall change on household-level international out-migration while controlling for relevant sociodemographic and economic factors. A decrease in precipitation is significantly associated with U.S.-bound migration, but only for dry Mexican states. This finding suggests that programs and policies aimed at reducing Mexico-U.S. migration should seek to diminish the climate/weather vulnerability of rural Mexican households, for example by supporting sustainable irrigation systems and subsidizing drought-resistant crops.     

Urban Form,Heart Disease,and Geography: A Case Study in Composite Index Formation and Bayesian Spatial Modeling

Recent studies indicate a relationship between measures of urban form as applied to urban and suburban areas, and obesity, a risk factor for heart disease. Measures of urban form for exurban and rural areas are considerably scarce; such measures could prove useful in measuring relationships between urban form and both mortality and morbidity in such areas. In modeling area-level mortality, geographic relationships between counties warrant consideration because geographically adjacent areas tend to have more in common than areas farther from each other. We modify county-level indices of urban form found in the literature so that they can be applied to exurban and rural counties. We then use these indices in a Bayesian spatial model that accounts for spatial autocorrelation to determine if there is a relationship between such measures and cardiovascular disease mortality for white males age 35 and older for the time period 1999–2001. Issues related to the formation and usefulness of the indices, and issues related to the spatial model, are discussed. Maps of observed and expected relative risk of mortality are presented. Jimmie Givens retired from his service.     

用孩次递进比模拟“全面二孩”政策调整初期的生育行为--以湖北省为例

以2014年湖北省卫生和计划生育委员会提供的包括“单独”、“双独”方面的数据为基础,描述了生育政策调整下被压抑的生育潜能释放的规律性和用孩次递进比的方法预测“全面二孩”政策调整初期的生育行为,与意愿分析方法相互比照,丰富了当下生育政策下生育行为预测研究。从分析结果可以看出,假定2016年“全面二孩”生育政策调整,湖北省第一年内会新增二孩出生量52621人,占湖北省2014年总出生量的7?41％;三年内最低会新增139262人的二孩生育量。城乡对比发现,农村新增二孩生育占到将近六成,且由抢生而导致的堆积主要集中在农村,40岁后的高龄抢生情况不严重。     

Exploring the influence of precipitation on fertility timing in rural Mexico

The influence of environmental conditions on fertility decision-making is becoming increasingly important in the context of contemporary climate change. Deforestation, land availability, and environmental quality may shape decisions regarding family size, particularly in regions with high levels of natural resource dependence. This research examines the relationship between fertility timing and precipitation in rural Mexico by linking household event-history data to municipal-level precipitation measures. Even after controlling for other factors that impact fertility, in historically dry areas, households are more likely to have a child following above average precipitation, using both 1-year and 2-year prior precipitation measures. Conversely, the relationship between precipitation and fertility timing in humid areas of rural Mexico is not statistically significant. Overall, the findings reveal that the fertility-environment connection is highly context-specific and differs across climate zones in Mexico, but that fertility timing is associated with recent rainfall patterns for households in dry areas of rural Mexico.     

The road to Q-infinity

For those of us who live in the more industrialized areas of the world—particularly in the United States—it is difficult to appreciate the unique character of the industrial and social evolution in which we are participating... Out of this experience it is not surprising that we have come to regard continual growth and increase as being the normal order of things.An understanding of these processes is essential if we are to appreciate the significance of energy resources in determining what is possible and what is impossible in human affairs.     

Population undercount and social science research

The undercount problem in the decennial census has important implication for social science research based directly or indirectly on census data. Because undercount rates (or coverage rates) vary by age, race, residence, and other factors typically studied in social research, important conceptual difficulties arise in using census results to corroborate sampling frames or to validate survey results. Differential undercount, particularly for analyses based on small areas, could produce substantial variability in prevalence rates in cases where the denominators for those rates are derived from the census. Several examples where the undercount problem arises in social science research, including survey research, are considered. The adjustment problem—whether to adjust, how to adjust, and how much to adjust—is also considered from the point of view of social sicence research.     

城镇化进程中农业转移人口市民化的健康效应分析

农业转移人口健康状况关系着中国劳动力质量和生产效率及健康中国战略的实施。本文采用CLDS(2014)调查数据探讨城镇化进程中农业转移人口市民化的健康效应,考虑市民化与健康水平之间可能存在的内生性关系,使用IV Ordered Probit模型进行分析。研究发现农业转移人口市民化显著提升了农业转移人口的健康水平。市民化水平的提高代表农业转移人口可享受城市基本公共服务及社会福利的增加,对健康有促进作用。从健康方面看,农业转移人口市民化促进了总体健康、精神健康、活力、生理功能、情感功能和躯体活动功能。从产业角度看,对比第二产业从业的农业转移人口,第三产业从业的农业转移人口市民化的健康效应更显著,说明对产业工人的职业健康保护力度不够,应加快产业升级,减少或避免劳动者的危险或重复劳动。个体差异是影响农业转移人口市民化健康效应的一个重要因素,从个体差异的起点(教育程度)和个体差异的终点(收入水平)看,教育程度高、收入水平高的农业转移人口市民化的健康效应更显著。户籍制度(尤其是隐藏其背后的社会福利差异)极大地削弱了农业转移人口市民化的健康效应。基于农业转移人口的市民化程度和自身的健康状况的正相关关系...