Natural resource collection and desired family size: a longitudinal test of environment-population theories

Theories relating the changing environment to human fertility predict that declining natural resources may actually increase the demand for children. Unfortunately, most previous empirical studies have been limited to cross-sectional designs that limit our ability to understand links between processes that change over time. We take advantage of longitudinal measurement spanning more than a decade of change in the natural environment, household agricultural behaviors, and individual fertility preferences to reexamine this question. Using fixed effect models, we find that women experiencing increasing time required to collect firewood to heat and cook or fodder to feed animals (the dominant needs for natural resources in this setting) increased their desired family size, even as many other macro-level changes have reduced desired family size. In contrast to previous, cross-sectional studies, we find no evidence of such a relationship for men. Our findings regarding time spent collecting firewood are also new. These results support the “vicious circle” perspective and economic theories of fertility pointing to the value of children for household labor. This feedback from natural resource constraint to increased fertility is an important mechanism for understanding long-term environmental change.     

Land and leña: linking transnational migration, natural resources, and the environment in Guatemala

This article examines the relationships between international migration, natural resources, and the environment. Rather than looking at environmental change as a cause of population movements, the article reveals how migration affects the environment in sending countries. Empirically, we rely on a case study in Guatemala. Although migrants and cash remittances make significant contributions to Guatemala’s changing economy, little is known about the relationships between migration and the environment in this Central American country—a country, which continues to have a large rural population and that relies heavily on its natural resources. Drawing on ethnographic research and household surveys in a Maya community, we reveal how migrants and their earnings, as well as their ideas, behavior and attitudes, affect land use, land cover, and firewood use. We reveal, for example, how in addition to investments in land for home building and pick-up trucks to help improve agricultural production, some migrant households purchase more land and often dedicate it to the cultivation of vegetable crops for local and foreign markets. Cultural practices and beliefs directly linked to land and the environment, particularly maize cultivation, also alter due to migration processes. And, despite the ability of migrant households to transition to more efficient fuels like liquid propane gas (LPG), we show how they continue to use firewood. In all, the study contributes important insights into the environmental implications of migration.     

贫困地区劳动力迁移、农户收入与贫困的缓解——基于新疆农户面板数据的实证分析

本文基于新疆30个贫困县、3000个农户、2008-2010年的微观面板数据,在控制了家庭规模、劳动力数量等家庭特征变量和粮食播种面积等村庄特征变量的前提下．运用固定效应法与工具变量法分别考察了劳动力迁移规模、迁移方式与迁移区位对家庭收入的影响．并进一步分析了劳动力迁移对贫困的缓解效应。回归结果表明：劳动力迁移规模虽然对农户农业收入有负向影响．但显著提高了农户人均收入与利他性收入：自发性迁移与政府组织性迁移方式均能显著提高农户收入,且自发性迁移的作用更强;省内县外迁移对农户收入的提高最为显著,其次为县内乡外迁移．省外迁移不影响农户收入：劳动力迁移规模提高了中等收入农户的收入水平。但对贫困户的贫困无缓解效应．也不影响富裕户的收入水平。     

Demarcating forest, containing disease: land and HIV/AIDS in southern Zambia

The ongoing HIV/AIDS pandemic in southern Africa continues to manifest itself in unexpected ways. While the consequences of the disease appear straightforward in some aspects—e.g., medical, labor, cost—in other respects the repercussions, while large, are nonetheless highly nuanced and can be counterintuitive. This paper reports on the intersection of HIV/AIDS, migration, livelihood adaptation, land tenure, and forest conservation, to outline how adaptation to the pandemic has reworked significant aspects of land tenure to result in increased forest conservation in southern Zambia in the near to medium-term. The research uses a combination of ethnography, case studies, household survey and spatial analyses and finds that HIV/AIDS is used in customary legal settings to enhance land access. We also draw links to practical and theoretical implications of the relationship between HIV/AIDS, land tenure, and deforestation in Sub-Saharan Africa.     

Drivers of rural exodus from Amazonian headwaters

Rural–urban migration can have both positive and negative environmental consequences for tropical forests. Rural residents exert pressure on the environment through farming, fishing, and forest extraction, yet conversely, protecting rural livelihoods is often the motivation for conserving large areas of threatened forest. This research examines rural settlement within the Brazilian Amazon to shed light on the drivers of on-going rural exodus and its environmental implications. Specifically, we examine the relative importance of public service provision and natural resources in determining settlement patterns along, and rural–urban migration from, eight rivers in road-less regions of the Brazilian Amazon. Data include biophysical, social, and economic variables that were assessed in 184 riverine settlements along rural–urban gradients up to 740 km from the nearest urban center. Settlements were smaller upstream, and lacked key services such as schools and healthcare. We found that clustering of rural populations close to urban centers reflects the high costs of living in remote areas, despite abundant natural resources which previously justified migration to headwaters. Impeded dry-season navigability and transport costs restricted the flow of goods and services to and from remote areas, and transaction costs of trade exchange were higher upstream. A lack of school access was the main motivation for rural–urban migration and the abandonment of remote riverine settlements. A key policy implication is that while education services could provide a powerful tool to stabilize and support rural populations, delivery is challenging in remote areas and may also encourage further rural–urban migration in the longer term. Furthermore, river-dwellers in remote areas rarely visited remote urban centers, presumably because these journeys are too costly. We examine the implications of our findings for anti-poverty subsidies and payment for ecosystem services and conclude that transport costs required to receive payment could encourage further depopulation of remote areas.     

Postmarital Living Arrangements in Historically Patrilocal Settings: Integrating Household Fission and Migration Perspectives

This study integrates theory and research on household fission (or partition) and migration to better understand living arrangements following marriage, especially in historically patrilocal and primarily agricultural settings. Using panel data from the Chitwan Valley Family Study to analyze the sequential decision-making process that influences men’s living arrangements subsequent to first marriage, we demonstrate the importance of distinguishing among extended family living, temporary migration, and the establishment of an independent household. We find that community economic characteristics, such as access to markets or employment, as well as household wealth affect the initial decision to leave the natal home. Household resources and use of farmland, along with the young men’s own education, media exposure, travel, and marital behavior, influence the decision to make the departure from the natal home permanent. Our findings explain why previous results regarding household fission and those focused on migration have provided such mixed results, and we establish a new framework for thinking about how families and individuals manage living situations.     

市场获得与中国劳动力迁徙的边界效应

本研究纳入新经济地理的新型要素——市场获得。试图建立影响劳动力迁徙动力机制的新坐标。利用1998-2008年期间中国劳动力跨区域流动样本数据,本文经验验证了“市场获得一要素报酬一迁徙”的倒“U”关联机制,发现我国早期市场获得对劳动力由外围区向中心区迁徙的贡献显著,并决定了“中心一外围”的地区竞争格局。内部二元经济结构走向“刘易斯拐点”。进而“人口红利”消退,这均迫使“市场获得一迁徙”正向关联机制趋于弱化;研究估算出我国劳动力要素跨区域迁徙的隐性壁垒（边界效应值）为3．94;且边界效应由东向西呈现出阶梯型上升的区域差异态势：劳动力要素市场呈现出中心区相对开放,外围区相对闭塞的局面,而引力型政策和保障性政策分别成为了劳动力跨区域迁徙的拉力和阻力。政府的配套政策应该保障自由市场和生产要素跨区域有效配置,在实现我国区域“中心一外围”格局走向均衡化发展的同时,继续维护中国工业生产的要素竞争力。     

Population control and environment protection]

Although many factors cause environmental pollution and damage, the most important and basic factor is a rapidly increasing population. Therefore, a balanced development of population and environment is essential. The pressure a rapidly increasing populaton exerts on the environment has many aspects. The pressure of population on land resources results in increased land use and increased insecticide use due to increased insect tolerance leading to decreased productivity of cultivated land, increased desert formation, and decreased food supply. Population pressure on forest resources leads to land erosion; one of the major causes of the 1981 flood in Sichuan was attributed to excessive logging activities. Demand for fuels (firewood, straws, animal manures) by an increasing population leads to decrease in natural fertilizers, decreased food production, and energy shortage in rural areas. Population pressure on cities leads to air, water, noise and other environmental pollution as well as decrease in housing facilities and in green vegetation. Problems resulting from population pressures on industrial development include industrial and environmental pollution and unemployment. Population increases and accompanying industrial activities affect the weather which in turn affects the quality of agriculture, forests, and lakes. Thus, if unchecked, atmospheric carbon dioxide level would double by the middle of the next century, which would lead to increase in atmospheric temperature with disastrous consequences. Therefore, a well planned program for population control is essential for achieving decent quality of life.     

Does it Take a Village? Migration among Rural South African Youth

In a rural African context, the saying, “it takes a village to raise a child,” suggests that community characteristics are substantially important in children’s lives as they transit to adulthood. Are these contextual factors also related to youth migration? Demographers are uncertain about how community characteristics improve our understanding of an individual’s propensity to migrate, beyond individual and household factors. In many low- and middle-income country settings, youth become migrants for the first time in their lives to provide access to resources that their families need. We employ discrete-time event history models from 2003 to 2011 Agincourt Health and socio-Demographic Surveillance System in rural South Africa to test whether markers of development in a village are associated with the likelihood of youth and young adults migrating, distinguishing between becoming temporary and permanent migrants during this critical life cycle phase. We find that village characteristics indeed differentially predict migration, but not nearly as substantially as might be expected.     

Extractive workload: a mixed-method approach for investigating the socially differentiated effects of land-use/land-cover changes in a southern Zambian frontier

In rural regions across the globe, local natural resources (i.e., “bush” resources) are central to meeting daily household needs. Culturally-influenced gender- and age-based divisions of labor guide the harvesting of these resources and, as a result, shifts in resource availability will differentially affect women, men, girls, and boys. This research brief presents results of an innovative pilot project designed to assess the socially differentiated effects of land-use/land-cover changes (LULCC) on Gwembe Tonga migrants living in Kulaale, an agricultural frontier in southern Zambia. Integrating existing analyses of remotely sensed imagery with a seasonal resource survey and mapping exercise (n = 20 homesteads), this study finds the average extractive workloads (mean annual distance traveled for the collection of bush resources) of women, men, girls, and boys to be both unequal and contrary to recent speculations about the distinctive vulnerability of adult women to environmental change. Drawing on qualitative ethnographic methods—including semi-structured interviews (n = 101), a homestead labor survey (n = 38), participant observation, and references to over fifty years of anthropological research—the author identifies additional variables—including the demographic structure of Kulaale homesteads and the flexible division of subsistence labor—that color Gwembe Tonga migrants’ aged and gendered experiences of LULCC. The study adds important nuance to our understanding of natural resource practices and individual-level vulnerability, particularly in the face of contemporary environmental change.     

Remittances in the Republic of Georgia: Correlates, Economic Impact, and Social Capital Formation

The economic impact of remittances on migrant-sending countries has been a subject of debate in the scholarly literature on migration. We consider the topic using a household-level approach. We use a new survey, “Georgia on the Move,” to examine migrant-level, household-level, and contextual variables associated with the probability that a household in the Republic of Georgia receives remittances. We then apply propensity score matching to estimate how remittances affect particular types of household expenditures, savings, labor supply, health, and other measures of well-being. Separate analysis of the subsample of households with a migrant currently abroad distinguishes the effects of remittances from the effects of migration as such. In Georgia, remittances improve household economic well-being without, for the most part, producing the negative consequences often suggested in the literature. We find evidence for an important aspect that has not been widely discussed in prior studies: remittances foster the formation of social capital by increasing the amount of money that households give as gifts to other households.     

Solitary Time and Mental Health in the Netherlands

Whereas prior research focused on the beneficial effects of time spent with others, this study investigated the association between solitary time and mental health by hypothesizing about the possible detriments as well as benefits. Additionally, we studied whether the association between solitary time and mental health was nonlinear and moderated by gender and life stage. We hypothesized that whereas solitary time limits individuals’ access to social resources and support (decreasing mental health), it also helps individuals to recharge (enhancing mental health). We used the Dutch Time Use Survey from 2006 (N = 1,487). Results of Tobit models indicated that more solitary time in leisure (but not household labor) was associated with a reduction in mental health. For men, we did find a negative association between alone time in household labor and mental health. There was no evidence for a curvilinear relationship between time alone and mental health, nor did life course stage appeared to moderate this association.     

Relative deprivation and international migration oded stark

This article provides theoretical reasoning and empirical evidence that international migration decisions are influenced by relative as well as absolute income considerations. Potential gains in absolute income through migration are likely to play an important role in households' migration decisions, but international migration by household members who hold promise for success as labor migrants can also be an effective strategy to improve a household's income position relative to others in the household's reference group. The findings reported in this article provide empirical support for the hypothesis that relative deprivation plays a significant role in Mexico-to-U.S. migration decisions. The findings also suggest that this migration is an effective mechanism for achieving income gains in households that send migrants to the U.S. and that households wisely choose as migrants those of their members who are most likely to provide net income gains.     

Gender and migration from Albania

This article examines the dynamics and causes of the shift in the gender composition of migration, and more particularly, in women’s access to migration opportunities and decision-making. Our analysis focuses on Albania, a natural laboratory for studying international migration where out-migration was essentially nonexistent from the end of World War II to the end of the 1980s. Interest in the Albanian case is heightened because of the complex layers of inequality existing at the time when migration began: relatively low levels of inequality within the labor market and educational system—a product of the Communist era—while household relations remained heavily steeped in tradition and patriarchy. We use micro-level data from the Albania 2005 Living Standards Measurement Study, including migration histories for family members since migration began. Based on discrete-time hazard models, the analysis shows a dramatic increase in male migration and a gradual and uneven expansion of the female proportion of this international migration. Female migration, which is shown to be strongly associated with education, wealth, and social capital, appears responsive to economic incentives and constraints. Using information on the dependency of female migration to the household demographic structure as well as the sensitivity of female migration to household-level shocks, we show how household-level constraints and incentives affect male and female migration differently. Throughout this period, however, women’s migration behavior appears more directly aligned with household-level factors, and there is little evidence to suggest that increased female migration signals rising behavioral independence among Albanian women.     

Labor Migration,Remittances and Economic Well-being of Households in the Philippines

Labor Migration has long been viewed as a strategy adopted by the household unit to allocate family resources rationally to increase the flows of income and to raise family standard of living. The research reported here examines the extent to which remittances sent by Filipino overseas workers increase the income and standard of living of households in the Philippines. Data for the analysis were obtained from a representative sample of 2,388 households drawn in 1999–2000 from four major “labor sending” areas in the Philippines. The analysis compares households with and without overseas workers to estimate the contribution of remittances to household income and to household standard of living (measured once by an ‘objective’ indicator and once by a ‘subjective’ assessment). The data reveal that due to remittances the income of households with overseas labor migrants is considerably higher than the income of households without overseas workers. The data also reveal that remittances are used mostly for consumption purposes (e.g. purchase of food, clothing, education, and goods) and that most of the difference in standard of living (whether measured on the ‘objective’ or the ‘subjective’ scale) between households with and without overseas workers are attributed to remittances. The implications of labor migration and the policy that encourages and supports labor migration for the Filipino society are evaluated and discussed.

Multidimensional Analysis of Water Poverty and Subjective Well-Being: A Case Study on Local Household Variation in Faisalabad,Pakistan

Water poverty is difficult to evaluate because it is multidimensional. It is determined not only by the availability of water sources but also whether communities have adequate access to clean, uncontaminated water. It is also dependent on the resource needs of those using the water. Under the premise that water scarcity is multidimensional, we use a Water Poverty Index approach using Principal Component Analysis to develop an index at the household level in 10 villages in one large farming community to examine each household’s subjective view of well being as a result of water poverty. This paper reviews how water resources endowments and depletion because of indiscriminate disposal of untreated industrial wastewater, household sewage and climate change are posing serious threats to water poverty at the household level in developing agrarian economies like Pakistan. We report from our results that both the perceived level of pollution and the proximity to clean and polluted water sources matter significantly for subjective well-being in rural households of Pakistan. The villages closer to polluted water sources are unhappier while the villages, which have better access to fresh water, have relatively higher subjective well-being. A strong implementation of environmental protection measures and regional strategies are suggested to alleviate water poverty and increase subjective well-being in local communities.     

农村劳动力流动对缓解贫困的实证分析

本文利用对甘肃省国家扶贫开发重点县六个样本村的调查资料。在总结贫困地区致贫基本原因的基础上,运用Probit模型,研究了劳动力流动及其相关因素对缓解农村贫困的作用。研究结果表明,家庭劳动力数量、外出劳动力数量、流动者年龄及受教育程度、流动时间的长短、流动的稳定性、流动区域等因素对缓解家庭贫困具有十分积极的作用,外出打工已成为农村缓解贫困的主要途径。     

Seasonal migration of rural labor in India

The impact of seasonal migration has been overlooked by students of migration. A unique data set collected in Dungarpur – one of the less developed districts of India – allows us to closely examine both the determinants and impact of seasonal migration. Detailed information was gathered from all members of 624 households, thus enabling analyses at both individual and household levels. The findings indicate that seasonal migration among rural laborers is wide-spread. Rural households in India use migrant labor offered by their members to improve their well-being by both reducing the impacts of inferior conditions and by raising household's income levels. Migrant labor is a compensating mechanism used by households to reduce their disadvantageous position. Migrant households are characterized by lower education levels, lower levels of income from agriculture, and by an inferior geographical location. However, those households sending migrant labor are found to have higher income levels than those not sending migrant labor. Income from migrant labor accounts for almost 60% of total annual income of households sending at least one migrant laborer. Such findings are in accordance with explanations derived from the `new economics of migration'. We can thus learn that migration-related decisions should not evaluated only on the basis of utility maximization of individual migrants, but also on the basis of risk reducing by households.     

家庭迁移决策分析——基于中国农村的证据

本文利用中国健康与营养状况调查数据,以家庭为单位分析了农村劳动力迁移的影响因素。结果表明,有无子女、子女年龄是影响家庭迁移的重要因素。与无子女的家庭相比,有子女家庭中夫妻二人至少一人外出打工的概率会大大降低,且子女年龄越小,影响越大。老人健康因素对一个家庭中夫妻二人是否至少有一人外出打工的影响不大,但家中男性老人健康较差会大大减少已婚子女夫妻共同外出打工的概率。     

Climate change and internal migration intentions in the forest-savannah transition zone of Ghana

Migration is at the centre of demographic research on the population–environment nexus. Increasing concerns about the impacts of environmental events on human population are fuelling interest on the relationship between migration and environmental change. Using data from the Climate Change Collective Learning and Observatory Network Ghana project, we employ binary logistic regression to examine migration intentions of households in response to major community stressors including climate-related ones. The results indicate that the type of community stressor that affects households most does not differentiate migration intentions in Ghana’s forest-savannah transition zone: Even though the majority of the respondents mentioned climate-related events as the stressor that affects them the most, such events do not appear to directly explain migration intentions. However, socio-demographic factors such as age, household size and current migration status are significant predictors of migration intentions, with younger household heads, heads of migrant households and heads of smaller households being relatively more likely to have migration intentions than other household heads. We conclude that migration drivers are multifaceted and deserve further research because even in areas with perceived environmental stress, climate-related events may not be the primary motivation for migration intentions.