Defining Skill: The Many Forms of Skilled Immigrant Labor

In the world of work, skills encompass more than just education. Expertise and abilities gained on the job, informally, or through specialized training programs can be adapted and used in a number of different settings. Yet, because skills are so often narrowly equated with level of education, the value of the work performed by low-wage workers (native-born and immigrant alike) is frequently devalued or overlooked entirely. From construction workers to gardeners, many low-wage immigrant workers are in fact quite skilled, but are frequently labeled as "less skilled" because their levels of formal educational attainment are relatively low or because the jobs they perform require little formal education. The purpose of this paper is to describe how certain immigrant workers acquire a wide range of skills and apply those skills in the United States. Using data from a large survey of workers, it is intended to broaden our concept of "skills" and begin to change the language we use to describe these workers

New Skills, New Jobs: Return Migration, Skill Transfers, and Business Formation in Mexico

Numerous studies have documented a high propensity for self-employment and business formation among return migrants relative to non-migrants. The literature points to the importance of remitted savings, migration duration, and number and types of jobs abroad for business formation upon return. Implicit in this scholarship is the assumption that migrants acquire not only financial capital, but also human capital, which expands their opportunities upon return. Empirical work has demonstrated how the transfer of formal human capital, such as language skills and professional credentials, influences the mobility pathways of professional return migrants. More recent research has also found that the transfer of informal human capital, such as social and technical skills learned on the job, shape the mobility pathways of return migrants with little schooling. Absent from this scholarship, however, are studies that directly test the relationship between the transfer of informal human capital and the odds of business formation among return migrants. In this paper, we address this gap. Using a multidimensional skills variable, which includes social, technical, and English language competences, we measure and test the relationship between skill acquisition and transfer and business formation among return migrants. Drawing on findings from a survey of 200 return migrants and 200 non-migrants in Mexico, we show that return migrants who successfully acquire and transfer new skills across the migratory circuit often leverage their new knowledge to launch businesses. Our findings have wide implications for how social scientists conceptualize and measure human capital formation across the migratory circuit

The Politics of Immigrant Rights: Between Political Geography and Transnational Interventions

Article published in the Michigan State Law Review

Deporting Fathers: Involuntary Transnational Families and Intent to Remigrate among Salvadoran Deportees

One-fourth of deportees from the U.S. are parents of U.S.-citizen children. We do not know how separation from families affects remigration among deportees, who face high penalties given unlawful reentry. We examined how family separation affects intent to remigrate among Salvadoran deportees. The majority of deportees with children in the U.S. were also separated from their spouse, and the vast majority had U.S.-citizen children. Family separation was the single most important factor affecting intent to remigrate. We interpret these findings in light of immigration policy debates

Skills on the Move: Rethinking the Relationship Between Human Capital and Immigrant Economic Mobility

Studies of immigrant labor market incorporation in the unregulated sector of the US economy either assume that immigrant workers are trapped in low-wage jobs because of low human capital, or paint a picture of blocked mobility because of exploitation and discrimination. In this paper we offer a third sociological alternative to understand processes of occupational mobility and skill learning. Drawing on work histories of 111 immigrant construction workers, we find that many immigrants are skilled, having come to their jobs with technical skill sets acquired in their home communities and their previous U.S. jobs. We further find that these less-educated immigrants, who rank low on traditional human capital attributes but high on work experience may circumvent exploitation and build mobility pathways through skill transference, on- the- job reskilling, and brincando (job jumping)

Validation of a New NIRS Method for Measuring Muscle Oxygenation During Rhythmic Handgrip Exercise

Near infrared spectroscopy (NIRS) is commonly used to measure muscle oxygenation during exercise and recovery. Current NIRS algorithms do not account for variation in water content and optical pathlength during exercise. The current effort attempts to validate a newly developed NIRS algorithm during rhythmic handgrip exercise and recovery. Six female subjects, aver age 28 +/- 6 yrs, participated in the study. A venous catheter was placed in the retrograde direction in the antecubital space. A NIRS sensor with 30 mm source-detector separation was placed on the flexor digitorum profundus. Subjects performed two 5-min bouts of rhythmic handgrip exercise (2 s contraction/1 s relaxation) at 15% and 30% of maximal voluntary contraction. Venous blood was sampled before each bout, during the last minute of exercise, and after 5 minutes of recovery. Venous oxygen saturation (SvO2) was measured with a I-stat CG-4+ cartridge. Spectra were collected between 700-900 nm. A modified Beer's Law formula was used to calculate the absolute concentration of oxyhemoglobin (HbO2), deoxyhemoglobin (Hb) and water, as well as effective pathlength for each spectrum. Muscle oxygen saturation (SmO2) was calculated from the HbO2 and Hb results. The correlation between SvO2 and SmO2 was determined. Optical pathlength and water varied significantly during each exercise bout, with pathlength increasing approximately 20% and water increasing about 2%. R2 between blood and muscle SO2 was found to be 0.74, the figure shows the relationship over SvO2 values between 22% and 82%. The NIRS measurement was, on average, 6% lower than the blood measurement. It was concluded that pathlength changes during exercise because muscle contraction causes variation in optical scattering. Water concentration also changes, but only slightly. A new NIRS algorithm which accounts for exercise-induced variation in water and pathlength provided an accurate assessment of muscle oxygen saturation before, during and after exercise

Acculturative Stress Among Documented and Undocumented Latino Immigrants in the United States

The purpose of the study was to examine differences between documented and undocumented Latino immigrants in the prevalence of three immigration-related challenges (separation from family, traditionality, and language difficulties), which were made more severe after the passage of restrictive immigration legislation in 1996. Specifically, the study sought to determine the combined and unique associations of legal status, the three immigration-related challenges listed above, and fear of deportation to acculturative stress related to family and other social contexts. Participants in the study consisted of 416 documented and undocumented Mexican and Central American immigrants living in two major cities in Texas. The Hispanic Stress Inventory–Immigrant form was used to assess acculturative stress in the sample. Results indicated that although undocumented immigrants reported higher levels of the immigration challenges of separation from family, traditionality, and language difficulties than documented immigrants, both groups reported similar levels of fear of deportation. Results also indicated that the immigration challenges and undocumented status were uniquely associated with extrafamilial acculturative stress but not with intrafamilial acculturative stress. Only fear of deportation emerged as a unique predictor of both extrafamililal and intrafamilial acculturative stress

Nigerian London: re-mapping space and ethnicity in superdiverse cities

This paper explores the idea of ‘superdiversity’ at the city level through two churches with different approaches to architectural visibility: the hypervisible Universal Church of the Kingdom of God and the invisible Igbo Catholic Church, both in North London, guide our exploration of invisible Nigerian London. Although Nigerians have lived in London for over 200 years, they live beneath the radar of policy and public recognition rather than as a vital and visible element of superdiversity. This paper argues that we can trace the journeys composing Nigerian London in the deep textures of the city thus making it visible, but this involves re-mapping space and ethnicity. It argues that visibility is vital in generating more open forms of urban encounter and, ultimately, citizenship