Migration Enclaves, Schooling Choices and Social Mobility

This paper investigates the presence of a network externality which might explain the persistence of low schooling achievements among internal migrants. A simple analytical framework is presented to show how an initial human capital disparity between migrants and non migrants can translate into persistent skill inequality if origin shapes the composition of social networks. We test empirically whether young migrants�schooling decisions are affected by the presence of covillagers at destination, using data on life-time histories of migration and education choices from a rural region of Thailand. Different modelling approaches are used to account for the self-selection of young migrants, for potential endogeneity of the network size, and for unobserved heterogeneity in individual preferences. The size of the migrant network is found to negatively affect the propensity of young migrants to pursue schooling while in the city. This fi�nding suggests that policies seeking to minimising strati�cation in enclaves might have a socially multiplied impact on schooling participation, and, ultimately, affect the socio-economic mobility of the rural born.human capital, schooling, networks, migration, inequality

Migration Enclaves, Schooling Choices and Social Mobility

This paper investigates the presence of a network externality which might explain the persistence of low schooling achievements among internal migrants. We test empirically whether young migrants schooling decisions are affected by the presence of covillagers at destination, using data on life-time histories of migration and education choices from a rural region of Thailand. Different modelling approaches are used to account for the self-selection of young migrants, for potential endogeneity of the network size, and for unobserved heterogeneity in individual preferences. The size of the migrant network is found to negatively affect the propensity of young migrants to pursue schooling while in the city. This finding suggests that policies seeking to minimise stratification in enclaves might have a socially multiplied impact on schooling participation, and, ultimately, affect the socio-economic mobility of the rural born.education, networks, migration

An advisor like me? Advisor gender and post-graduate careers in science

We investigate whether having an advisor of the same gender is correlated with the productivity of PhD science students and their propensity to stay in academic science. Our analysis is based an original dataset - combined from dissertation abstracts, faculty directories and bibliometric data - covering nearly 20,000 PhD graduates and their advisors from U.S. chemistry departments. We find that students working with advisors of the same gender tend to be more productive during the PhD; and that female students working with female advisors are considerably more likely to become faculty themselves. We suggest that the under-representation of women in science and engineering faculty positions may perpetuate itself through the lower availability of same-gender advisors for female students.</p

Migration Enclaves, Schooling Choices and Social Mobility

This paper investigates the presence of a network externality which might explain the persistence of low schooling achievements among internal migrants. A simple analytical framework is presented to show how an initial human capital disparity between migrants and non migrants can translate into persistent skill inequality if origin shapes the composition of social networks. We test empirically whether young migrants�schooling decisions are affected by the presence of covillagers at destination, using data on life-time histories of migration and education choices from a rural region of Thailand. Different modelling approaches are used to account for the self-selection of young migrants, for potential endogeneity of the network size, and for unobserved heterogeneity in individual preferences. The size of the migrant network is found to negatively affect the propensity of young migrants to pursue schooling while in the city. This fi�nding suggests that policies seeking to minimising strati�cation in enclaves might have a socially multiplied impact on schooling participation, and, ultimately, affect the socio-economic mobility of the rural born

Migration Enclaves, Schooling Choices and Social Mobility

This paper investigates the presence of a network externality which might explain the persistence of low schooling achievements among internal migrants. A simple analytical framework is presented to show how an initial human capital disparity between migrants and non migrants can translate into persistent skill inequality if origin shapes the composition of social networks. We test empirically whether young migrants�schooling decisions are affected by the presence of covillagers at destination, using data on life-time histories of migration and education choices from a rural region of Thailand. Different modelling approaches are used to account for the self-selection of young migrants, for potential endogeneity of the network size, and for unobserved heterogeneity in individual preferences. The size of the migrant network is found to negatively affect the propensity of young migrants to pursue schooling while in the city. This fi�nding suggests that policies seeking to minimising strati�cation in enclaves might have a socially multiplied impact on schooling participation, and, ultimately, affect the socio-economic mobility of the rural born

Child Labor and FDI: Evidence from Vietnam

The objective of this paper is to provide evidence regarding the impact of FDI on child labor in Vietnam. Starting with the reforms in the late 1980s Vietnam experienced an economic boom which led to an important decline in poverty and child labor. The 2000 decade witnessed a drastic acceleration of the structural transition away from agriculture. In this paper we merge repeated household surveys and enterprise censuses to explore the contribution of foreign firms to the decline in child labor. We find that while higher demand for labor by domestic firms tends to increase child labor, the entry of FDI in both the manufacturing and services sectors have contributed to reduce the labor supply of children. The impact of FDI in the service sector has so far been smaller than in manufacturing. This is partly due to the fact that FDI into the services sector has been limited, more capital-intensive and concentrated in the richest provinces, but also perhaps to the fact that manufacturing firms may be more easily targeted by trade policy in the rest of the world or consumer boycotts associated with child labor

Child Labor and FDI: Evidence from Vietnam

The objective of this paper is to provide evidence regarding the impact of FDI on child labor in Vietnam. Starting with the reforms in the late 1980s Vietnam experienced an economic boom which led to an important decline in poverty and child labor. The 2000 decade witnessed a drastic acceleration of the structural transition away from agriculture. In this paper we merge repeated household surveys and enterprise censuses to explore the contribution of foreign firms to the decline in child labor. We find that while higher demand for labor by domestic firms tends to increase child labor, the entry of FDI in both the manufacturing and services sectors have contributed to reduce the labor supply of children. The impact of FDI in the service sector has so far been smaller than in manufacturing. This is partly due to the fact that FDI into the services sector has been limited, more capital-intensive and concentrated in the richest provinces, but also perhaps to the fact that manufacturing firms may be more easily targeted by trade policy in the rest of the world or consumer boycotts associated with child labor

A portable X-ray fluorescence device for in situ analyses of mural paintings

Within the context of a research program for studying with nondestructive methods the preparation and realisation techniques of mural paintings used in the Roman age, a portable ED-XRF device for elemental analysis has been set up. Preliminary tests have been carried out on two Roman mural paintings belonging to the Baia Archaeological Complex (Naples). Datable to different periods, the two paintings show different manufacturing and conservation states, thus representing a good test for verifying the ED-XRF device capability. In situ and laboratory measurements, performed on materials of different origin and nature, have permitted the determination of the pigments and the recognition of pollution traces

A portable X-ray fluorescence device for in situ analyses of mural paintings

Within the context of a research program for studying with nondestructive methods the preparation and realisation techniques of mural paintings used in the Roman age, a portable ED-XRF device for elemental analysis has been set up. Preliminary tests have been carried out on two Roman mural paintings belonging to the Baia Archaeological Complex (Naples). Datable to different periods, the two paintings show different manufacturing and conservation states, thus representing a good test for verifying the ED-XRF device capability. In situ and laboratory measurements, performed on materials of different origin and nature, have permitted the determination of the pigments and the recognition of pollution traces

The Mucosae-Associated Epithelial Chemokine (MEC/CCL28) Modulates Immunity in HIV Infection

BACKGROUND. CCL28 (MEC) binds to CCR3 and CCR10 and recruits IgA-secreting plasma cells (IgA-ASC) in the mucosal lamina propria (MLP). Mucosal HIV-specific IgA are detected in HIV-infection and exposure. The CCL28 circuit was analyzed in HIV-infected and-exposed individuals and in HIV-unexposed controls; the effect of CCL28 administration on gastrointestinal MLP IgA-ASC was verified in a mouse model. METHODOLOGY/FINDINGS. CCL28 was augmented in breast milk (BM) plasma and saliva of HIV-infected and –exposed individuals; CCR3+ and CCR10+ B lymphocytes were increased in these same individuals. Additionally: 1) CCL28 concentration in BM was associated with longer survival in HIV vertically-infected children; and 2) gastro-intestinal mucosal IgA-ASC were significantly increased in VSV-immunized mice receiving CCL28. CONCLUSIONS. CCL28 mediates mucosal immunity in HIV exposure and infection. CCL28-including constructs should be considered in mucosal vaccines to prevent HIV infection of the gastro-intestinal MLP via modulation of IgA-ASC.Istituto Superiore di Sanita' "Programma Nazionale di Ricerca sull' AIDS"; DG Right to Health and Solidarity Policy; EMPRO and AVIP EC WP6 Projects; Japan Health Science Foundation; National Institutes of Child Health and Human Development (HD 39611, HD 40777