Publication: International Migration and Nutritional Outcomes in Tajikistan
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Date
2011
ISSN
03069192
Published
2011
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Tajikistan is the country with the largest share of remittances to GDP in the world. At the same time it suffers from stubbornly high levels of child malnutrition against which only very slow progress has been made. This paper investigates the relationship between international migration and child malnutrition, using data from a recent nationally representative household survey. There are theoretical reasons to expect that migration may be exerting both positive and negative effects on nutrition and food security, so that understanding what the net effect may be is essentially an empirical question. Our results indicate that migration appears to be playing a positive role in enhancing child growth patterns (as measured by height-for-age z-scores) in the country. We explore some of the possible channels through which this effect might be operating and find that one such channel is by increasing households' kilocalorie consumption.
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Publication Assessing the Impact of Migration on Food and Nutrition Security(2011)Migration has become a key component in the livelihood strategies of an increasing number of households across the developing world and remittances have expanded dramatically in the last decade. This has come at a time when an increased emphasis has been placed on reducing malnutrition to achieve Millennium Development Goal (MDG) targets. While this is the case, there has been little attention on the interface between migration and nutrition even though migration can influence nutrition through a number of channels. The objective of this special issue is to present state-of-the-art analyses of the link between migration and nutrition in developing countries. In this paper, an overview of the conceptual and empirical issues in identifying the link between migration and nutrition are considered. 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Descriptive evidence suggests the possible channels through which migration may operate are improved food security and reduced morbidity.Publication What Happens to Diet and Child Health When Migration Splits Households? Evidence from a Migration Lottery Program(2011)The impact of migration on food security and child health is likely to differ depending on whether children themselves migrate or whether they remain behind while other household members migrate. However, existing studies have not been able to examine how impacts differ in these two scenarios because parallel data are required for both the sending and receiving country. Moreover, self-selection into migration makes unbiased estimation of either impact difficult. We overcome these problems by using a unique survey of Tongan households that applied to migrate to New Zealand through a migrant quota which selects households through a random ballot. This survey covers both migrant children in New Zealand and non-migrant children in Tonga, with the migration policy rules providing a source of exogenous variation for identifying impacts. Our estimates of short-run impacts show that diets diverge upon migration: children who migrate experience improvements, while diets worsen for children who remain. There is also suggestive evidence of a divergence in health outcomes, with increases in weight-for-age and height-for-age found for migrant children, and decreases found for children who remain behind while other household members migrate.Publication The Demographic Benefit of International Migration : Hypothesis and Application to Middle Eastern and North African Contexts(2006-11-01)The view that international migration has no impact on the size of world population is a sensible one. But the author argues, migration from developing to more industrial countries during the past decades may have resulted in a smaller world population than the one which would have been attained had no international migration taken place for two reasons: most of recent migration has been from high to low birth-rate countries, and migrants typically adopt and send back to their home countries models and ideas that prevail in host countries. Thus, migrants are potential agents of the diffusion of demographic modernity, that is, the reduction of birth rates among nonmigrant communities left behind in origin countries. This hypothesis is tested with data from Morocco and Turkey where most emigrants are bound for the West, and Egypt where they are bound for the Gulf. The demographic differentials encountered through migration in these three countries offer contrasted situations-host countries are either more (the West) or less (the Gulf) advanced in their demographic transition than the home country. Assuming migration changes the course of demographic transition in origin countries, the author posits that it should work in two opposite directions-speeding it up in Morocco and Turkey and slowing it down in Egypt. Empirical evidence confirms this hypothesis. Time series of birth rates and migrant remittances (reflecting the intensity of the relationship kept by emigrants with their home country) are strongly correlated with each other. Correlation is negative for Morocco and Turkey, and positive for Egypt. This suggests that Moroccan and Turkish emigration to Europe has been accompanied by a fundamental change of attitudes regarding marriage and birth, while Egyptian migration to the Gulf has not brought home innovative attitudes in this domain, but rather material resources for the achievement of traditional family goals. Other data suggest that emigration has fostered education in Morocco and Turkey but not in Egypt. And as has been found in the literature, education is the single most important determinant of demographic transition among nonmigrant populations in migrants' regions of origin. Two broader conclusions are drawn. First, the acceleration of the demographic transition in Morocco and Turkey is correlated with migration to Europe, a region where low birth-rates is the dominant pattern. This suggests that international migration may have produced a global demographic benefit under the form of a relaxation of demographic pressures for the world as a whole. Second, if it turns out that emigrants are conveyors of new ideas in matters related with family and education, then the same may apply to a wider range of civil behavior.Publication The Impact of Migration on Food Consumption Patterns : The Case of Vietnam(2011)This paper explores the relationship between migration and consumption patterns using panel data from the 2004 and 2006 Vietnam Household Living Standards Surveys. Employing an instrumental variable approach to control for the endogeneity of migration, our results indicate that short-term migration has a positive effect on overall per capita food expenditures, per capita calorie consumption and food diversity. Long-term migration also appears to be positively related to consumption, but impacts are often insignificant and of a lesser magnitude than short-term migration. The results provide no evidence of negative effects of migration, and support the view that short-term migration is a mechanism by which households maintain food security. The results suggest that to improve food security the Vietnamese government should enact policies that facilitate short-term migration flows as well as the transferring of remittances.
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