Publication: On the Underestimation of Migration's Income and Poverty Impact
Abstract
In estimating the impact of migration on income and poverty, most existing studies have overlooked the fact that migration changes the size of the household. The 'corrected' impact that accounts for changes in household size is presented analytically and is estimated on the basis of data from nationally representative household surveys in Albania and Ghana. The analysis considers three poverty measures and four groups of migrant households: those with internal, international, internal and international, and internal and/or international migrants. The ratio of the corrected to the uncorrected impact on per capita income for Ghana (Albania) averages from 2.7 to 4.5 (2.5-3.8), and the ratio for the poverty impact averages from 2.6 to 4.4 (2.1-6.4). Thus, abstracting from changes in household size may result in a substantial underestimate of the impact of migration on income and poverty.
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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. 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Using cross-sectional survey data, a double-difference approach based on child growth patterns that controls for the selectivity of migration is used to assess the impact of migration to the US on Height-for-Age Z (HAZ) scores and stunting prevalence of children. HAZ scores for children in households with a migrant to the US are conservatively estimated to be 0.5 standard deviations higher and the prevalence of stunting is approximately 6 percentage points lower. Descriptive evidence suggests the possible channels through which migration may operate are improved food security and reduced morbidity.Publication Parental Education and Children's Schooling Outcomes: Evidence from Recomposed Families in Rwanda(2009)In this article, I investigate how educational outcomes of orphans are affected by the education of the family members in their new family. 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