个体经济地位、婚前家庭经济差异与婚姻迁移

婚姻迁移是通过婚姻途径发生的并伴随户口变更的人口迁移。我国婚姻迁移人口的规模不断增长,婚姻迁移受性别、出生地、出生年代的影响,初婚年龄的队列差别对婚姻迁移同样存在影响。个人经济地位,即个人年收入越高,婚姻迁移的可能性越大。婚前男方家庭经济状况更好的婚姻迁移的可能性更高,女方家庭经济状况更好的婚姻迁移的可能性相对较低。     

地区发展、经济机会、收入回报与省际人口流动

利用最新的第六次全国人口普查数据,本文考察了省际人口流动的空间模式,发现省际人口流动呈现明显的空间聚集态势.并进一步分析地区差异对省际人口流动的影响,结果表明：作为流出地,一个地区的经济发展水平对于人口流出具有显著的阻力效应,但经济机会的多寡和经济回报的高低并无显著的影响;作为流入地,一个地区的经济发展水平对于吸引人口流入并不具有显著的影响,其“拉力”主要表现为经济机会的多寡和经济回报的高低.因地区发展不平衡短期内难以改变、经济开放性会继续增强、收入地区分化仍将存在,加上更加自由的流动环境和不断改善的交通和通讯条件,省级人口流动在局部地区集中的趋势将会进一步被强化.     

Variations in interstate migration of men across the early stages of the life cycle

The results reported here show that the stage of an individual's life cycle not only has direct effects on the likelihood of migration, but also establishes a context within which the motives to migrate are evaluated and acted upon. One contextual impact of the life cycle concerns the effects of length of residence on migration. The results show that the probability of migrating declines more rapidly over time for married males with children than for singles males--i.e., the difference between the likelihood of migration for single males and married males with children widens with increasing length of residence. Much of this difference may be due to the greater number and strength of community ties for individuals who are married with children. These ties are not well developed at the beginning of a residence but continue to strengthen over the course of a residence. In addition, there are variations in the levels of job rewards and location-specific resources across the life cycle and there are two variations across the early life cycle in the effects of independent variables on the initial rate of migration. One resource (self-employment) and one job reward (prestige) have different effects for single individuals than for either group of married males. If the span of the life cycle considered in this analysis were broadened to include older men, additional differences in the effects of independent variables might be uncovered. In research with cross-sectional data containing a wider range of ages than the data used here, Heaton et al. (1981) found that economic variables were more important in determining the migration of younger individuals than that of older individuals, whereas noneconomic factors were more important determinants of the migration of older than of younger individuals. The results of this paper and Heaton's results suggest that at different stages of life people use a somewhat different "subjective cost-benefit calculus" in making migration decisions. The importance of certain migration determinants may vary significantly depending on whether an individual is married, whether he or she has children, and/or whether he or she is in the labor force or retired. Additional research on these issues could greatly contribute to our understanding of migration.     

A Panel Based Analysis of the Effects of Race/Ethnicity and Other Individual Level Characteristics at Leaving on Returning

Individual level differentials between migrants and nonmigrants are examined to ascertain the likelihood of return migration to a prior residence based on characteristics at the time of departure from place of origin. Analysis focuses on comparisons of Hispanics, blacks and whites, examining the odds of return migration by education, employment status, marital status, home ownership, length of residence, gender, age, and migration interval. The 1979 National Longitudinal Survey of Youth (NLSY79) is utilized to identify 13,798 preliminary migrations that may be followed by at least one return migration. Findings indicate a sharp decline in propensity to return migrate as length of absence from origin increases. Regardless of length of time since the preliminary migration, both blacks and Hispanics are more likely to return migrate than are whites. Individuals who resided at place of origin for longer periods before leaving had strikingly higher odds for return migration.     

Correlates of subjective well-being in Northern Wisconsin

This paper presents the results of an attempt to relate socioeconomic status, family status, social participation and personal disruptions of statuses and roles to an index of life satisfaction in rural sectors of Northern Wisconsin. While income, education and occupational status and level of living explain very little of life satisfaction, social participation variables explain somewhat more and disruptions of marital ties, job, physical well-being and residence explain most. Analyses by age and sex show that contacts with friends, relatives and church attendance are more important for the young, employment for the middle-aged and village residence more important for the older persons. The analysis supports the notion that life satisfaction results from the discrepancy between the aspirations and expectations of the individual and his ability to satisfy them within his environment. Education is negatively associated with subjective well-being when other variables are controlled. The influence of social involvement upon life satisfaction suggests the need for a modification of the aspiration-attainment model to include the integrative-expressive as well as the adaptive-instrumental processes of the individual.     

Temporary Migrants in Shanghai Households, 1984

In China, temporary migration is defined as a change in place of residence without a concomitant change in household registration; such mobility therefore encompasses a more heterogeneous set of movements than is usually subsumed under this heading in other nations. Because of China's strict control of permanent migration to large cities, temporary migration has become an important strategy for adjusting to economic changes and to effecting family reunification. The Shanghai Temporary Migration Survey of 1984 focused on one segment of temporary migrants, the 58% living in the households of permanent residents. Multinomial logistic regression suggests the heightened probability that close relatives of the household heads come to Shanghai to visit or to live, and nonrelatives to work. Regression on current and expected duration shows that many intended to stay for a year or more, some for up to 20 years. Their presence in the city places added strains on infrastructure and raises questions about the continued efficacy of China's migration policies.     

Age,education and occupation differentials in interregional migration: Some evidence for Canada

This paper attempts to bring together the demographic literature on differential migration with economic analysis of regional labor mobility. This is done by estimating a rather simple form of economic model of migration by means of linear regression analysis for specific age, education and occupation groups of male interprovincial migrants in Canada. The data on migration are from the population sample of the 1961 Census of Canada. The pattern of migration differentials displayed by these data is broadly similar to that observed in the United States and elsewhere. The regression results suggest that differential migration by education and occupation groups may be accounted for by the varying responsiveness of the various groups to economic gains obtained through migration. While this seems to be generally true of age differentials as well, the relationship of those to regional income differentials is weaker and points up an important role of motivations other than economic gain.     

Economic development with limited supplies of family labor: Chinese peasant families in balancing demographic and economic requisites

Family planning (FP) in rural China, particularly the ramifications of the 1-child policy, has profound implications and ramifications for family-centered social and economic life in addition to demographic control. Under a constitutionally endorsed policy of strict birth control, favorable economic opportunities coexisted with the problem of familial labor shortages. Recent reform policies have led to a more relaxed FP environment. The Chinese state is in a dilemma between the need to allow peasant's autonomy in determining the familial work situation and the population pressure on the limited cultivated land. The Chinese experience of rural reform is examined in terms of the complex relationship between population change and economic development which are influenced by the production and welfare activities of the peasant family. The theoretical argument is that a family reliant strategy of economic reform undercuts the effectiveness of population control programs. The ultimate solution lies with sustained industrialization with high labor absorption. National trends and the Dahe People's Commune/Township experience are analyzed. Discussion is focused on the dilemma of FP and family production, old and new evidence of family size and economic performance, welfare outcome of family size, the role of the state in altering the demographic balance sheet, and the strategic response of peasant families to bring families of old designs back and urban migration and proletarianization. It is concluded that there is growing understanding that the causal relationships between population growth and economic development do not clearly support universal population control. Human social organization, not the man/land ratio, shapes the consequences of population growth. The implications for the Malthusian vs. Marxian debate for developing countries are that the resources/population imbalance needs to consider more carefully the human organizational factors. Mao's notions that a revolutionary transformation of the social organization of production in China would resolve overpopulation have since been rectified by opposing ideological positions: changing the basic mode of production through institutional decollectivization and checking population growth with the 1-child policy. This dilemma in rural areas translates to greater productivity and diversification with Chinese families having abundant adult labor and secured by the number of sons. It is difficult to substantiate the benefit of small families for peasants theoretically. Political rewards have been curtailed by economic declines. The peasant family has adapted by reconstituting old family forms and kin networks and by out-migration and nonagricultural employment.     

Residence background,migration, and fertility

This paper attempts to clarify confusion concerning residence background and migration, and to demonstrate that each of these factors exerts an independent effect on fertility. Basic premises underlying the direction of the effect of these variables on fertility are examined. Data from the 1967 Survey of Economic Opportunity indicate that migration and residence background do have independent effects. It is concluded that present generalizations as to the direction of their influence should be submitted to closer scrutiny with additional data in the future. In addition, an index of rural exposure is developed to test the proposition that fertility varies directly with degree of rural experience. The data only partially support this hypothesis. Moreover, rural-to-urban migrants are found to have only slightly higher fertility than the receiving urban-origin population.     

Is There an Urban Advantage in Child Survival in Sub-Saharan Africa? Evidence From 18 Countries in the 1990s

Evidence of higher child mortality of rural-to-urban migrants compared with urban nonmigrants is growing. However, less attention has been paid to comparing the situation of the same families before and after they migrate with the situation of urban-to-rural migrants. We use DHS data from 18 African countries to compare child mortality rates of six groups based on their mothers’ migration status: rural nonmigrants; urban nonmigrants; rural-to-urban migrants before and after they migrate; and urban-to-rural migrants before and after they migrate. The results show that rural-to-urban migrants had, on average, lower child mortality before they migrated than rural nonmigrants, and that their mortality levels dropped further after they arrived in urban areas. We found no systematic evidence of higher child mortality for rural-to-urban migrants compared with urban nonmigrants. Urban-to-rural migrants had higher mortality in the urban areas, and their move to rural areas appeared advantageous because they experienced lower or similar child mortality after living in rural areas. After we control for known demographic and socioeconomic correlates of under-5 mortality, the urban advantage is greatly reduced and sometimes reversed. The results suggest that it may not be necessarily the place of residence that matters for child survival but, rather, access to services and economic opportunities.     

Highly Skilled Migration from Africa to the US: Exit Mechanisms,Demographic Determinants,and the Role of Socioeconomic Trends

Despite increases in research on the migration of skilled Africans to the developed world, few studies have examined the specific mechanisms of departure contributing to these trends. Previous studies further contain limited analysis of how these mechanisms respond to Africa’s changing social and demographic trends. This study uses data from various sources to examine these issues. The results indicate that, in absolute terms, overall emigration flows of highly skilled Africans to the US more than doubled between 1980 and 2010. In addition, they suggest that previous arguments indicating that the recruitment of African professionals drives these flows understate the role of student migration in driving these movements. In the past three decades, more skilled Africans migrated to the US through student migration mechanisms than through any mechanism associated with the recruitment of workers. Furthermore, in recent years, the Diversity Visa Program has become the second most important mechanism through which skilled emigration from Africa occurs. Finally, the analysis finds that trends in African student emigration are highly responsive to youth population growth and that, surprisingly, the migration of skilled professionals is less influenced by African economic trends than by economic trends in the US.

     

Environmental security and labor migration in Nepal

Do changes in environmental security that result from declining access to forest resources shape labor migration in a context where household production and consumption are intimately dependent on natural resources? Using 1996 household data from the Chitwan Valley of Nepal, we examined if a decrease in access to firewood increased the likelihood of migration of individuals for work. The results of multinomial logistic regression showed that, environmental insecurity was a significant predictor for migration regardless of destination, domestic or international. Labor requirements for household maintenance also played an important role in the decision to migrate. Management of forest resources and poverty alleviation by providing firewood substitutes and economic opportunities at the local level is likely to change the labor migration flow, which could be an important issue for future research.     

How Job Characteristics Affect International Migration: The Role of Informality in Mexico

Despite the importance given to employment opportunities as a primary motive for migration, previous studies have paid insufficient attention to the kinds of jobs that are more likely to retain workers in their countries of origin. We use information from a panel survey of Mexican adults to examine how job characteristics affect the risk of international migration. The sampling strategy and overall size of the survey allow us to analyze the effect of employment characteristics on migration from urban areas, which have much greater labor market diversity, and to separate our analysis by gender. We also distinguish migrants according to whether they migrate for work or for other reasons. We find informality to be a significant predictor of international migration. Even after controlling for individual factors including workers’ wages, as well as various household- and community-level predictors, we find that workers employed in the informal sector have significantly higher odds of migrating than their counterparts in the formal sector. The pervasive nature of informality in many developing countries from which a high proportion of international migrants originate may therefore create a constant supply of workers who are predisposed to migrate. Our findings thus have important implications for a proper understanding of the effects of economic development on migration.     

A stocks and flows approach to a theory of human migration with examples from past Irish migration

While scientists from many disciplines have contributed to the understanding of specific instances of human migration, there is need for a more general theory of voluntary migration. This paper presents and tests (using data on Irish migration) an economic model which could serve as the core of a multidisciplinary general theory. The economic model postulates earnings differentials between countries and regions as the proximate cause of the generation of a stock of migrants. As a result of institutional barriers, personal inertia, incomplete knowledge of earnings differentials, etc., not all of the existing stock becomes a flow of migrants in any year. Application of this model to migration between different countries or between the same countries at different time periods can be of value to scientists in many disciplines in isolating the underlying causes for differing rates of awareness of and response to earnings differentials by potential migrants.     

Migration and relationship power among mexican women

Our study drew on original data collected in Durham, NC, and four sending communities in Mexico to examine differences in women's relationship power that are associated with migration and residence in the United States. We analyzed the personal, relationship, and social resources that condition the association between migration and women's power and the usefulness of the Relationship Control Scale (RCS) for capturing these effects. We found support for perspectives that emphasize that migration may simultaneously mitigate and reinforce gender inequities. Relative to their nonmigrant peers, Mexican women in the United States average higher emotional consonance with their partners, but lower relationship control and sexual negotiation power. Methodologically, we found that the RCS is internally valid and useful for measuring the impact of resources on women's power. However, the scale appears to combine diverse dimensions of relationship power that were differentially related to migration in our study.     

Fertility adaptation by rural-urban migrants in developing countries: The case of Korea

Summary The purpose of this study is to develop and test a model to assess the influence of rural-urban migration on fertility in less developed countries. Two major reasons may account for lower fertility levels observed among such migrants than among women who remained in rural areas: a selection effect, and adaptation to constraints in the area of destination. Results of previous studies have only rarely suggested that the effect of adaptation was significant. We use the detailed personal migration and pregnancy histories recorded in the Korean World Fertility Survey of 1974 and an autoregressive model to control for unobservable variations in personal preferences for different family sizes between migrants and non-migrants. Our study provides evidence that adaptation following rural-urban migration is a significant factor which explains the lower fertility of rural-urban migrants compared with that of rural stayers.     

Familial obesity as a proxy for omitted variables in the obesity-mortality relationship

In a conventional survival analysis of a sample of the U.S. population in 1971-1974, the association between mortality and obesity is compared with the analogous risk from the presence of an obese person in a household. The two factors have similar risk profiles, with a hazard ratio of 1.44 for nonmorbid obesity and 1.48 for nonmorbid familial obesity in one sample. If "familial obesity" cannot directly affect personal longevity, and if shared factors determine both personal and familial obesity, the mortality risk of family and actual personal obesity is similarly overstated. This false positive in the estimated risk arises from correlations among obesity and unobserved environmental, behavioral, or genetic factors.     

Newcomers and oldtimers: Do classification methods matter in the study of amenity migration impacts in rural America?

Rural, high-amenity areas in the USA continue to attract significant numbers of migrants. A common approach to investigating the potential consequences of rural in-migration is to contrast the characteristics, attitudes, and/or actions of migrants and non-migrants (or “newcomers” and “oldtimers”). However, no consensus exists on the distinctions (or the lack thereof) between these two groups in the existing literature, in part because previous research used a variety of methods to classify residence status. Drawing on household survey data from nine communities in north-central Colorado, this study illustrates how different categorizations may yield different conclusions. Categorizing resident groups by the 1970/1980 cutoff or 5-, 10-, or 20-year length of residence substantially altered the differences and similarities between newcomers and oldtimers in selected sociodemographic, perceptual, and behavior indicators. It is recommended that researchers choose the most appropriate classification approach based on specific research questions and objectives as well as important transitions in the migration patterns of their study areas. These findings have direct implications for future research on rural demographic change and socioeconomic restructuring.     

Rural–Urban Migration and Cross-National Variation in Infant Mortality in Less Developed Countries

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.     

我国劳动力跨区域流动的边界效应——基于个体迁徙微观抉择模型

本文以成本收益权衡的个体自主迁徙模式为基础,考察了5个年份（1998、2000、2002、2006和2007年）宏观劳动力跨区域流动样本数据,实证结果发现除了地区收入差和就业机会外,社会网络也是劳动力迁徙成本的影响因素;回归获取了样本期省份层面劳动力迁徙的平均边界效应为4．28。总体显示,我国跨区域（省份）劳动力迁徙具有一定的时期性和区域性特征,西部省份边界效应（迁徙壁垒）普遍高于东部,中心区域（如北京和上海）则高于全国平均水平,前者应归因于自然的迁徙壁垒成本,后者则更多地受到政策壁垒的成本影响。