Heterogeneous climate effects on human migration in Indonesia

We examine the effect of anomalous temperatures, rainfall levels, and monsoon timing on migration outcomes in Indonesia. Using panel data from the Indonesian Family Life Survey and high-resolution climate data, we assess whether intra- and inter-province moves are used as a response to climatic shocks. We evaluate the relative importance of temperature, rainfall, and monsoon timing for migration. Only temperature and monsoon timing have significant effects, and these do not operate in the direction commonly assumed. Estimated effects vary according to individuals’ gender, membership in a farm household, and location. We also analyze climate effects on sources of household income, which highlights the multi-phasic nature of household responses. Results undermine narratives of a uniform global migratory response to climate change and highlight the heterogeneous use of migration as a response to such changes. By extending previous research on environmentally induced migration in Indonesia, we also highlight the sensitivity of estimates to alternative climate and migration measures.     

Inter-regional migration in Indonesia: a micro approach

We study the extent to which the likelihood of specific types of migration in Indonesia varies by the situation in the labour market and family life course. We distinguish migration types according to origin and destination (Jakarta, other metropolitan areas, and non-metropolitan areas). For migration from Jakarta, we also distinguish migration to other metropolitan areas within commuting distance. As expected, we find that young adults are the most mobile category. As an exception, migration from Jakarta to nearby metro areas was just as likely for ages 30–54 as for ages 23–29. Our findings suggest that migration to Jakarta and other metropolitan areas, in particular, is most likely undertaken for better education or jobs. Married people are more likely than others to leave Jakarta for nearby metropolitan areas.     

Thresholds in climate migration

Migration in response to climatic hazards or changes in climatic conditions can unfold in a variety of ways, ranging from barely observable, incremental changes in pre-existing migration flows to abrupt, non-linear population movements. The adoption of migration instead of in situ adaptation responses, and the high degree of variability in potential migration outcomes, in part reflects the presence of thresholds or tipping points within the processes of human-environment interaction through which climate adaptation and migration take place. This article reviews and makes linkages between existing research in climate adaptation, migration system dynamics, residential preferences, and risk perception to identify and explore the functioning and importance of thresholds. Parochial examples from the author’s published research on climate adaptation and migration in rural North America are used to illustrate. Six types of thresholds in response to climate hazards are identified: (1) Adaptation becomes necessary; (2) Adaptation becomes ineffective; (3) Substantive changes in land use/livelihoods become necessary; (4) In situ adaptation fails, migration ensues; (5) Migration rates become non-linear; and (6) Migration rates cease to be non-linear. Movement across thresholds is driven by context-specific characteristics of climate events, natural systems, and/or human systems. Transition from incremental to non-linear migration can be accelerated by people’s perceptions, by actions of influential individuals or groups, and by changes in key infrastructure, services, or other community assets. Non-linear climate migration events already occur at local and sub-regional scales. The potential for global scale, non-linear population movements later this century depends heavily on future greenhouse gas emission trends. The ability to identify and avoid thresholds that tip climate migration into a non-linear state will be of growing concern to policy makers and planners at all levels in coming decades. This article forms part of a special issue of this journal dedicated to the late Graeme Hugo, and the author draws heavily on past research by Professor Hugo and colleagues.     

Sociological aspects of inter-island migration in Indonesia

“Transmigration” to the Outer Islands of Indonesia is generally considered a solution for the overpopulation problem of Java. An analysis of the actual situation exposes some of the fallacies behind this assumption.

Organised resettlement in irrigated areas tends to reproduce the overpopulation pattern prevalent in Java. “Spontaneous” migration, without governmental planning and supervision, is still less satisfactory as it exposes the cleared soils to erosion, after a few harvests.

The analysis shows that the concept of overpopulation should be made more precise. In relation to the modes of cultivation practised among most of the peoples outside Java, many regions in the Outer Islands may be regarded as overpopulated, in spite of their low population densities.

The absorptive capacity of the Outer Islands should not be measured in spatial terms only, but sociological and psychological factors must be taken into account. Assimilation of the Javanese migrants with Sumatrans would seem unlikely, given the present system of rural resettlement.

A solution of the overpopulation problem of Java and of the resettlement problem would call for efficient planning to bring about basic changes in the economic structure of the whole archipelago, including a programme for industrial development.

The weaknesses of the newly founded Asian states are in part due to the fact that national loyalties have not yet taken root among the mass of the population.     

Complex climate and network effects on internal migration in South Africa revealed by a network model

Population and Environment - Climate variability and climate change influence human migration both directly and indirectly through a variety of channels that are controlled by individual and...     

The effects of climate change on the geography and timing of human mobility

Human mobility over different distances and time scales has long been associated with environmental change, and the idea of climate change is now affecting movement in new ways. In this paper, we discuss three cases from the South Pacific to explain the ways anticipated climate futures are changing mobility in the present. First, we examine village relocation in response to coastal erosion and inundation in Fiji, drawing on our study of the unfolding experience of Narikoso village in Kadavu Province. In contrast to this spatially constrained process of permanent relocation, we examine the spatially extended yet temporally constrained seasonal migrant worker programme that aims to support economic development in the Pacific Islands by providing temporary work visas in Australia and New Zealand. Finally, we examine the likely effects of proposed open labour markets as a means to promote climate change adaptation, through a study of the analogous example of Niuean migration to New Zealand which has resulted in both permanent migration and a slow circulation of people between both countries. Across these examples, we highlight emerging and potentially constructive ways in which climate change is altering the spatio-temporal patterns and rhythms of mobility.     

When nature rebels: international migration, climate change, and inequality

We study climate change and international migration in a two-country overlapping generations model with endogenous climate change. Our main findings are that climate change increases migration; small impacts of climate change have significant impacts on the number of migrants; a laxer immigration policy increases long-run migration, aggravates climate change, and increases north–south inequality if climate change impacts are not too small; and a greener technology reduces emissions, long-run migration, and inequality if the migrants’ impact to overall climate change is large. The preference over the policies depends on whether the policy maker targets inequality, wealth, the environment, or the number of migrants.     

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.     

The politics of leisure and labor mobilities: discourses of tourism and transnational migration in Central Java,Indonesia

This article presents narratives and tropes of transnational tourism from a less considered perspective: rural migrant-origin villagers of Central Java. Drawing from ethnographic fieldwork conducted in Cilacap and Yogyakarta, I analyze how and why some former temporary labor migrants depict their typically harsh experiences in terms of tourism and leisure. Addressing the tendency in current research to approach labor migration and tourism as mutually exclusive or unrelated class categories and experiences, I consider the ways in which former migrants and non-migrant villagers evaluate or identify labor migration in terms of gender, class, religious, and ethno-national subjectivities associated with ‘tourist’ and/or ‘migrant’ categories. Popular and commercial imaginations of leisure travel and tourism importantly shape the subjectivities and positionalities of precarious labor migrants. Foregrounding the relations between tourism and labor migration reveals the multi-scalar ways in which associated discourses and infrastructures of both mutually shape and constitute global socio-economic inequalities.     

Long-term effects of international migration: Lessons from Israel

The paper shows that characteristics of immigrants at the time of immigration affect both long-term occupational achievements and income at the end of the labor force career, after age 59. Data representing 174,000 Jewish males 60 and older from a 1985 survey by the Israeli Central Bureau of Statistics are analyzed to show how the timing of immigration, the number of years in the country, age at immigration, country of origin, and educational resources at time of immigration are related to years in the labor force in the host country, occupational achievement, pension entitlement and income after age 59. Both direct and indirect effects are analyzed. The results show the importance of immigration characteristics on long-term socioeconomic adjustment, and the necessity of considering social status over the life course as an indicator of long-term immigrant adjustment. Decomposition of the effect of country of origin pinpoints what characteristics at time of immigration influence social status differences in ethnic groups at older ages. The discussion includes a number of methodological implications for future studies in immigration.Abbreviations AA Asian-African - CBS Israeli Central Bureau of Statistics - EA European-American This article is based on a paper presented at the annual meeting of the Society for the Advancement of Socio-Economics, New York, March 1993. It was written while the authors were on leave from Ben-Gurion University of the Negev.     

The effects of development on migration: Theoretical issues and new empirical evidence

Empirical research on the determinants of emigration from the LDCs has so far given little emphasis to the complex relationship of development and migration. Since the beginning of the 1990s several arguments have been put forth which hint at the possibility that in the early stages of development economic progress might lead to more migration, even if income differentials to the potential destination regions decrease. This paper presents these arguments and tests them for the case of migration to Germany from 86 Asian and African countries from 1981 to 1995. The results confirm the importance of financial restrictions on migration, migration networks, and changes in the societal structure of the sending countries as well as the existence of a home preference. The estimations also control for the political situation in the home countries and for institutional measures in the host country. Received: 18 May 1998/Accepted: 6 March 2000     

The conflicting effects of delayed marriage and declining divorce rates on cumulative fertility in Indonesia

The impact of nuptiality patterns on fertility in Indonesia is examined with multivariate analysis controlling for 8 socioeconomic variables. Data were obtained from the 1987 Indonesian Contraceptive Prevalence Survey. Marriage is usually universal by age 35, and in this study all women 30 years had been married at least once. 20% were married at 15 years and 45% married at 18 years. For those married more than once, prevalence of 1st marriage was 7% for women 15-24 years, 15% for 25-34 years, and 29% for 35-49 years. In 1976 and 1987, the age at 1st marriage and number of times married were both strongly and negatively correlated. The % never marrying between 15-49 years rose from 21.5% to 26.4% between 1980-87. Cumulative fertility w as related to both age at 1st marriage and number of times married. Muslim women, women in Java and Bali, and rural women all marry at younger ages. 27% of the variance in age at 1st marriage is explained by women aged 25-34, current residence, region, religion, language, education, and work or not before marriage. The number of times married is also associated with socioeconomic characteristics without control, i.e., Muslim women 25-34 years were 3 times more likely to have been married more than once than in other faiths. With controls for socioeconomic factors, only 13% of the variance is explained and being Muslim has no statistically significant effect. The important net effects were being interviewed in Balinese, age, and age at 1st marriage. In the analysis of cumulative fertility, age at 1st marriage consistently is related to cumulative fertility in almost every socioeconomic group when age and number of times married is controlled for. Women married more than once have lower fertility. 36% of the variance is explained by all the variables. Being married more than once leads to having 2.1 fewer children. A 5-year delay in marriage leads to .75-1.1 fewer children. When other variables are controlled for, neither educational level nor prior work experience has a statistically significant effect on cumulative fertility. In the contraception analysis, women married more than once used contraception less. Among women 35-49, those marrying later had higher contraceptive use, but in general contraceptive use declined with age. More information is needed on why marriage patterns are changing.     

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.     

Drought and migration: an analysis of the effects of drought on temporary labor and return migration from a migrant-sending area in Nepal

Population and Environment - Although the relationship between drought – a dimension of climate change – and migration has been explored in a number of settings, prior research...     

Adding choice to the contraceptive mix: lessons from Indonesia

Researchers asked 1945 women of reproductive age living in East Java, Indonesia what contraceptive method they preferred during the women's 1st visit to a government family planning clinic. Soon after field workers introduced them to a method, the researchers asked the women what method the field workers suggested and what method the women planned to use. They again spoke to them 1 year later to determine contraception continuation. The field workers granted 86.3% of the women their method choice. Only 9% of these women had stopped using their chosen method while 72% of the women who were not allowed to use their chosen method stopped using the method assigned to them. Thus choice was a key factor in sustained use of contraceptives. Further if family planning workers stick to a mutual participation of both themselves and their clients, they respect clients' method choices and, by informing clients about the chosen method, they strengthen clients' decision making. In the early 1990s, another researcher had developed a system to determine contraceptive needs at various stages of the reproductive period (before 1st marriage, after 1st marriage but prior to 1st birth, after 1st birth but prior to last birth, and after last birth). She applied observed contraceptive preferences for women using contraception within each life cycle stage to the age specific contraception need, derived from data from the 1987 Contraceptive Prevalence Survey for Indonesia, to determine the ideal contraceptive mix. Her calculations demonstrated that oral contraceptive use was high, IUD use was low, particularly among older women, and too few sterilizations had occurred, particularly among older women. Thus Indonesia needed to broaden the contraceptive mix to encourage methods that better meet women's reproductive life cycle needs.