International Migration: Trends,Determinants, and Policy Effects

This paper synthesizes insights from new global data on the effectiveness of migration policies. It investigates the complex links between migration policies and migration trends to disentangle policy effects from structural migration determinants. The analysis challenges two central assumptions underpinning the popular idea that migration restrictions have failed to curb migration. First, post‐WWII global migration levels have not accelerated, but remained relatively stable while most shifts in migration patterns have been directional. Second, post‐WWII migration policies have generally liberalized despite political rhetoric suggesting the contrary. While migration policies are generally effective, “substitution effects” can limit their effectiveness, or even make them counterproductive, by geographically diverting migration, interrupting circulation, encouraging unauthorized migration, or prompting “now or never” migration surges. These effects expose fundamental policy dilemmas and highlight the importance of understanding the economic, social, and political trends that shape migration in sometimes counterintuitive, but powerful, ways that largely lie beyond the reach of migration policies.     

An Empirical Study on the Laddering Migration of China’s Floating Population

Using data collected by Center for Population and Development Studies of Renmin University of China in 2009 in Chaoyang district of Beijing, Dongguan city of Guangdong province and Zhuji city of Zhejiang province, this paper does an empirical study on the laddering migration of China’s floating population. The findings indicate that floating population’s geographical laddering migration, occupational laddering migration and family laddering migration exist in the process of migration. Geographical laddering migration is influenced by demographic characteristics, migration experience and pathfinder effect of parents. Occupational laddering migration is influenced by migration experience, stability of occupation and social interaction with local residents in destination. Family laddering migration is influenced by family member’s characteristics, area of arable land, migration experience and the number of relatives in destination.     

Rethinking measures of migration: On the decomposition of net migration

The purpose of this paper is to “resurrect” the measure of net migration and defend its continued use under specific research circumstances, despite the current dissatisfaction with the measure as expressed by some scholars. We employ data from the 1980 Census of Population to compare five measures of migration, including net migration rates, in- and out-migration rates, migration efficiency ratios and migration turnover rates. We demonstrate the additivity of in- and out-migration rates with net migration rates and migration turnover rates. Also, we show how the migration efficiency ratio and turnover rates are conceptually and mathematically related. Finally, a simple multivariate model is estimated to show how regression coefficients from in-and out-migration rate models are related to net migration and migration turnover rates.     

人力资本区域迁移与经济增长理论模型—国际智力外流模型的拓展

本研究将国际智力外流模型拓展为两区域模型．综合考虑人力资本迁移对迁入地区和迁出地区的经济增长效应,并且进一步引入迁移成本,构建适用于中国人力资本区域迁移与经济增长的理论模型。基本启示是：中国人力资本区域迁移在理论上完全能够实现人力资本迁入地区和人力资本迁出地区双赢．同时迁移成本的降低将大大促进人力资本迁移的经济增长效应。模型暗含的政策建议是降低中国区域间人力资本迁移成本,加速区域间人力资本合理迁移以促进中国各区域经济增长。     

中国经济体制改革以来省际人口迁移区域模式及其变化

本文主要根据人口迁移选择指数 ,系统考察了中国经济体制改革以来省际人口迁移的区域模式及其变化趋势。发现经济体制改革以来 ,中国省际人口迁移的“单向梯度东移”模式 ,已开始出现东强西弱非对称“双向”迁移的变化 ;在人口迁移流向继续主要向东部地带“集中”的同时 ,迁移吸引中心也正发生着量的不断扩大的“多极化”和质的持续提高的“强势化” ;已逐步形成对塑造中国省际人口迁移区域模式具有重要影响的北京、上海两大全国级强势吸引中心和广东、新疆两大地区级强势吸引中心     

我国人口迁移趋势及空间格局演变

文章从影响人口迁移的动力要素和迁移方式入手,从战略上把握我国不同地区未来人口迁移及空间格局的基本趋势,探索促进人口有序流动的各项政策。研究表明,2000～2020年我国每年从乡村迁入到城市的净常住人口数量将大体保持在1500万左右,并在链式迁移方式主导下,人口迁移的空间格局不会有太大的改变,仅出现一些微调,未来迁移人口还将主要集中在大都市区范围内。     

Do conditional cash transfers influence migration? A study using experimental data from the Mexican progresa program

Prior research on Mexican migration has shown that social networks and economic incentives play an important role in determining migration outcomes. We use experimental data from PROGRESA, Mexico's primary poverty-reduction program, to evaluate the effects of conditional cash transfers on migration both domestically and to the United States. Our study complements a growing body of literature aimed at overcoming longstanding hurdles to the establishment of causal validity in empirical studies of migration. Analysis based on the data collected before and after the program's onset shows that conditional transfers reduce U.S. migration but not domestic migration. The data also enable us to explore the role of existing family and community migration networks. The results show that migration networks strongly influence migration, but that the effect of conditional transfers on migration is apparently not mediated by existing migration network structures. Our results suggest that conditional transfers may be helpful in managing rural out-migration, particularly to the United States.     

Family Migration Pattern in China

Do an increase in ageing in developed countries and ＂getting old before getting rich＂ in developing countries indicate that fluctuations in the population age structure have produced a qualitative change？ What is a qualitative change and what is a quantitative change＇？ Here we propose a new concept of Shadow Population,then establish a new standard for evaluating population age structure,finally present a typical five stage population age structure type transition model. The model simulation shows that all world regions are still in the adult stage and that population ageing belongs to the category of quantitative change. However, sustained low fertility will lead to a qualitative change in the ageing population. The current pressure of population aging in the adult stage placed on the pension security system shows that this system is truly not retirement age and Long-term stability in a sustainable system,Gradually raising the replacement fertility is the key to solving the socioeconomic development dilemma presented by future population ageing in low fertility regions or cotlntries,but the latter is more urgent.     

<Emphasis Type="Bold">Interstate Migration and Employer-to-Employer Transitions in the United States: New Evidence From Administrative Records Data</Emphasis>

Declines in migration across labor markets have prompted concerns that the U.S. economy is becoming less dynamic. In this study, we examine the relationship between residential migration and employer-to-employer transitions in the United States, using both survey and administrative records data. We first note strong disagreement between the Current Population Survey (CPS) and other migration statistics on the timing and severity of any decline in U.S. interstate migration. Despite these divergent patterns for overall residential migration, we find consistent evidence of a substantial decline in economic migration between 2000 and 2010. We find that composition and the returns to migration have limited ability to explain recent changes in interstate migration.     

Migration and climate change: examining thresholds of change to guide effective adaptation decision-making

The implications of environmental change for migration are little understood. Migration as a response to climate change could be seen as a failure of in situ adaptation methods, or migration could be alternatively perceived as a rational component of creative adaptation to environmental risk. This paper frames migration as part of an adaptation response to climate change impacts to natural resource condition and environmental hazards. Thresholds will be reached by communities after which migration will become a vital component of an effective adaptation response. Such changes to migration patterns have the potential to undermine migration policy unless appropriate preparations are undertaken. This paper describes an approach to assist researchers to frame how climate change will influence migration by critically analysing how thresholds of fundamental change to migration patterns could be identified, primarily in relation to two case studies in Nepal and Thailand. Future policy for internal and international migration could be guided by the analysis of such thresholds of non-linear migration and resourced effectively to ensure that socio-economic and humanitarian outcomes are maximised.     

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.     

Gender, migration, and career trajectories in Malaysia

With data from the Malaysian Family Life Survey, I use a continuous-state hazards model to study the impact of migration on the dynamics of individuals’ careers. I distinguish between the effects of family migration and solo migration by gender. The results show that migration alters the career trajectory primarily by accelerating the process of occupational mobility rather than by increasing the level of occupational attainment. Further, the effect of migration on careers varies by type of migration, especially for women. Male-female differences in the outcome of family migration, however, are visible only in transitions into and out of employment.     

Net migration and migration effectiveness: A comparison between Australia and the United Kingdom, 1976–96 Part 1: Total migration patterns

A nation’s population is redistributed through migration flows and counterflows between its constituent subnational areas, resulting in a geographical pattern of net migration gains or losses which may change from one time period to another. Migration effectiveness is the indicator commonly used to measure net migration as a proportion of gross migration turnover for any territorial unit. This paper explores the effect of net migration in two different countries, Australia and the United Kingdom, using measures of migration effectiveness computed from period-age migration data sets for a system of city regions assembled for four consecutive five-year periods in each country. While the evidence suggests that the overall effectiveness of net migration has declined over the 20-year period in both countries, marked similarities and contrasts are apparent in the spatial patterning of migration that together provide useful analytical insights into the changing space economies of the two countries.     

Globalization and changes in Australian international migration

Australian international migration has undergone a massive transformation in the last decade, in part as a result of globalization. Although Australia has long been a country of immigration with a relatively high proportion of its residents foreign-born, the nature of international migration shaping the country has undergone profound change in the era of globalization. This paper outlines some of the major dimensions of this change in international migration. The links between globalization and migration are complex and two-way but there can be no doubt that processes which have accelerated international exchanges of goods, information, ideas, trade and finance and led to an internationalization of labour markets have been associated with shifts in Australian migration. This change has had a number of components which have increased the complexity of the international migration influencing Australia. The changes examined include the increasing significance of skill-related migration compared with other forms, increasing non-permanent migration, the increasing nexus between temporary and permanent migration, the increasing movement of Australians out of the country, the significance of student migration and the increasing significance of migration in influencing Australia’s relationship with its Asia-Pacific neighbours. These changes have profound implications for Australia’s contemporary and future demography.     

Internal migration age patterns and the transition to adulthood: Australia and Great Britain compared

Life-course transitions are important drivers of mobility, resulting in a concentration of migration at young adult ages. While there is increasing evidence of cross-national variations in the ages at which young adults move, the relative importance of various key life-course transitions in shaping these differences remains poorly understood. Prior studies typically focus on a single country and examine the influence of a single transition on migration, independently from other life-course events. To better understand the determinants of cross-national variations in migration ages, this paper analyses for Australia and Great Britain the joint influence of five key life-course transitions on migration: (1) higher education entry, (2) labour force entry, (3) partnering, (4) marriage and (5) family formation. We first characterise the age profile of short- and long-distance migration and the age profile of life-course transitions. We then use event-history analysis to establish the relative importance of each life-course transitions on migration. Our results show that the age structure and the relative importance of life-course transitions vary across countries, shaping differences in migration age patterns. In Great Britain, the strong association of migration with multiple transitions explains the concentration of migration at young adult ages, which is further amplified by the age-concentration and alignment of multiple transitions at similar ages. By contrast in Australia a weaker influence of life-course transitions on migration, combined with a dispersion of entry into higher education across a wide age range, contribute to a protracted migration age profile. Comparison by distance moved reveals further differences in the mix of transitions driving migration in each country, confirming the impact of the life-course in shaping migration age patterns.     

中国人口的迁移转变——基于迁移率的考察

经典人口转变理论侧重死亡和生育转变过程的测量、描述和解释,地理学家将迁移转变纳入人口转变框架,以完善人口转变理论。不过与死亡和生育转变研究不同,中国的迁移研究侧重基于对迁移流动人口规模和结构的考察分析,少有采用人口学意义上的迁移率指标的研究。文章利用2010—2015年历次中国综合社会调查的合并数据,通过人口学方法和泊松回归模型,计算和分析了1950—2015年中国人口迁移率趋势及社会经济差异。中国的迁移转变在宏观趋势上与中国的政治经济变迁高度一致。与死亡和生育转变相比,其波折性更强,说明更易受到经济社会政策变化的冲击。同时也观察到逢“0”和逢“5”年份的申报偏好。另外,迁移的社会经济差异明显。男性迁移率高于女性,但是两性差异在不断缩小;乡城迁移和未婚迁移大幅度增长;而越来越多受教育程度较高人群加入迁移,使得受教育程度越高的人群具有越高的迁移率。可以认为基于迁移率的考察揭示了中国迁移转变更具体生动的过程。     

Temporal and spatial variation in age-specific net migration in the United States

As fertility differences in the United States diminish, population redistribution trends are increasingly dependent on migration. This research used newly developed county-level age-specific net migration estimates for the 1990s, supplemented with longitudinal age-specific migration data spanning the prior 40 years, to ascertain whether there are clear longitudinal trends in age-specific net migration and to determine if there is spatial clustering in the migration patterns. The analysis confirmed the continuation into the 1990s of distinct net migration "signature patterns" for most types of counties, although there was temporal variation in the overall volume of migration across the five decades. A spatial autocorrelation analysis revealed large, geographically contiguous regions of net in-migration (in particular, Florida and the Southwest) and geographically contiguous regions of net out-migration (the Great Plains, in particular) that persisted over time. Yet the patterns of spatial concentration and fragmentation over time in these migration data demonstrate the relevance of this "neighborhood" approach to understanding spatiotemporal change in migration.     

Migradollars and mortality: The effects of migration on infant survival in Mexico

We apply multilevel methods to data from Mexico to examine how village migration patterns affect infant survival outcomes in origins. We argue that migration is a cumulative process with varying health effects at different stages of its progression, and test several related hypotheses. Findings suggest higher rates of infant mortality in communities experiencing intense U.S. migration. However, two factors diminish the disruptive effects of migration: migradollars, or migrant remittances to villages, and the institutionalization of migration over time. Mortality risks are low when remittances are high and decrease as migration becomes increasingly salient to livelihoods of communities. Together, the findings indicate eventual benefits to all infants, irrespective of household migration experience, as a result of the development of social and economic processes related to U.S. migration.     

Facilitators and constraints at each stage of the migration decision process

Behavioural models of migration emphasize the importance of migration decision-making for the explanation of subsequent behaviour. But empirical migration research regularly finds considerable gaps between those who intend to migrate and those who actually realize their intention. This paper applies the Theory of Planned Behaviour, enriched by the Rubicon model, to test specific hypotheses about distinct effects of facilitators and constraints on specific stages of migration decision-making and behaviour. The data come from a tailor-made panel survey based on random samples of people drawn from two German cities in 2006–07. The results show that in conventional models the effects of facilitators and constraints on migration decision-making are likely to be underestimated. Splitting the process of migration decision-making into a pre-decisional and a pre-actional phase helps to avoid bias in the estimated effects of facilitators and constraints on both migration decision-making and migration behaviour.     

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。