Factors in Exposure Assessment: Ethnic and Socioeconomic Differences in Fishing and Consumption of Fish Caught along the Savannah River

South Carolina has issued fish consumption advisories for the Savannah River based on mercury and radionuclide levels. We examine differences in fishing rates and fish consumption of 258 people interviewed while fishing along the Savannah River, as a function of age, education, ethnicity, employment history, and income, and test the assumption that the average consumption of fish is less than the recreational value of 19 kg/year assumed by risk assessors. Ethnicity and education contributed significantly to explaining variations in number of fish meals per month, serving size, and total quantity of fish consumed per year. Blacks fished more often, ate more fish meals of slightly larger serving sizes, and consumed more fish per year than did Whites. Although education and income were correlated, education contributed most significantly to behavior; people who did not graduate from high school ate fish more often, ate more fish per year, and ate more whole fish than people who graduated from high school. Computing consumption of fish for each person individually indicates that (1) people who eat fish more often also eat larger portions, (2) a substantial number of people consume more than the amount of fish used to compute risk to recreational fishermen, (3) some people consume more than the subsistence level default assumption (50 kg/year) and (4) Blacks consume more fish per year than Whites, putting them at greater risk from contaminants in fish. Overall, ethnicity, age, and education contributed to variations in fishing behavior and consumption.     

The structural disempowerment of Eastern European migrant farm workers in Norwegian agriculture

Since the 2004 EU enlargement established one European common labour market, a large number of Eastern Europeans have taken up seasonal employment as hired farm workers in Norwegian agriculture. Much attention in the public has been given to the potential for ‘social dumping’ of these migrating workers, as they are considered prone to exploitation by farmers looking for cheap and docile labour, and subject to low-wages and poor labour conditions. In response to these threats, Norway implemented labour regulations (‘transitional rules’) that established minimum standards for wage levels and labour conditions, combined with registration and supervision of the incoming labour force. Nevertheless, reports from the field indicate that many of the westward migrating labour force experience work conditions that are far poorer than prescribed by the labour regulations, as these are not implemented at the farm level. In this paper, we discuss the social processes that result in this mismatch between state regulations (e.g. transition rules) and the actual experiences of migrant workers building on dual labour market theory. Analysing qualitative in-depth interviews with 54 farm migrants, we argue that there are two sets of factors underlying the poorer working conditions observed on the farms: Firstly, the structural disempowerment of migrant workers, which gives them weak negotiating positions vis-à-vis their employers (farmers); and secondly, the migrant workers' frame of reference for wage levels, in which poor payment levels by Norwegian standards are found acceptable or even good when judged by Eastern European wage levels. While a number of works have described the exploitation of farm migrant labour, we demonstrate in this paper how national immigration and agricultural histories, structures and present policies configure the labour–capital relations at farm level in the Norwegian case.     

Marital Status and Mothers’ Time Use: Childcare,Housework, Leisure,and Sleep

Assumptions that single mothers are “time poor” compared with married mothers are ubiquitous. We tested theorized associations derived from the time poverty thesis and the gender perspective using the 2003–2012 American Time Use Surveys (ATUS). We found marital status differentiated housework, leisure, and sleep time, but did not influence the amount of time that mothers provided childcare. Net of the number of employment hours, married mothers did more housework and slept less than never-married and divorced mothers, counter to expectations of the time poverty thesis. Never-married and cohabiting mothers reported more total and more sedentary leisure time than married mothers. We assessed the influence of demographic differences among mothers to account for variation in their time use by marital status. Compositional differences explained more than two-thirds of the variance in sedentary leisure time between married and never-married mothers, but only one-third of the variance between married and cohabiting mothers. The larger unexplained gap in leisure quality between cohabiting and married mothers is consistent with the gender perspective.     

La dimension sociale du commerce international à la lumière du pluralisme de l'Organe d'appel de l'OMC

Pour certains juristes du travail, les règles de l'OMC pourraient empêcher les États de sanctionner comme ils l'entendent les atteintes aux normes et droits relatifs au travail protégés par le droit national ou international, sur leur sol ou ailleurs. Cependant, dans sa jurisprudence, l'Organe d'appel de l'organisation a admis un certain pluralisme des règles, protégeant ainsi l'autonomie des État en matière réglementaire. Cette interprétation élargit également le champ des exceptions autorisées, et elle atténue la portée dérégulatrice de certaines dispositions du droit de l'OMC. De nombreuses mesures de protection des travailleurs pourraient donc devenir acceptables et compatibles avec les règles du droit commercial international.     

Inequality in an OLG economy with heterogeneous cohorts and pension systems

We analyze the consumption and wealth inequality in an OLG model with mandatory pension systems. Our framework features within-cohort heterogeneity of endowments and heterogeneity of preferences. We allow for population aging and gradual decline in TFP growth. We show four main results. First, increasing longevity translates to substantial increases in aggregate consumption inequality and wealth inequality. Second, a pension system reform from a defined benefit to a defined contribution works to reinforce consumption inequality and reduce wealth inequality. Third, minimum pension benefits are able to partially counteract an increase in inequality introduced by the defined contribution system, at a fiscal cost. Fourth the minimum pension benefit guarantee mostly addresses the sources of inequality which stem from differentiated endowments rather than those which stem from heterogeneous preferences.     

Wage Frontiers in Pre and Post-crisis Spain: Implications for Welfare and Inequality

Social Indicators Research - This paper explores the evolution of wages in Spain using a stochastic frontier approach to estimate the wage frontiers of workers in Spain as a function of their human...     

Urban channel incision and stream flow subsidies have contrasting effects on the water status of riparian trees

The water relations of riparian trees are often closely tied to stream hydrology and channel morphology, which can be altered by urban development. In regions with limited precipitation, urban water use can generate or augment dry-season stream flows, potentially providing a water subsidy to riparian trees. However, urbanization is also associated with high storm flows that cause stream channel incision, or downcutting, which could limit the effect of flow subsidies by lowering riparian water tables. We investigated the effects of urban dry-season flow subsidies and stream channel incision on the water status of streamside trees in Sacramento, California, which has a Mediterranean climate with a distinct and lengthy dry season. For two common facultative riparian species, Quercus lobata (valley oak) and Fraxinus latifolia (Oregon ash), we analyzed both midday stem water potential (Ψ_stem) measurements and leaf carbon isotope signatures (?¹³C) to determine whether channel incision and dry-season flow had interacting effects on seasonal midday water stress and longer-term water use efficiency. We found that stream flow could substantially reduce dry-season water stress in both tree species, but only at low levels of channel incision. Leaf ?¹³C signatures for Q. lobata suggested increased water use efficiency in trees growing along incised streams and those lacking dry-season flow. Urban management decisions that affect both dry-season base flows and channel incision can thus influence the growth and health of riparian trees, potentially leading to broader changes in riparian ecosystems.

     

Roles of Vegetable Surface Properties and Sanitizer Type on Annual Disease Burden of Rotavirus Illness by Consumption of Rotavirus-Contaminated Fresh Vegetables: A Quantitative Microbial Risk Assessment

Enteric viruses are often detected in water used for crop irrigation. One concern is foodborne viral disease via the consumption of fresh produce irrigated with virus-contaminated water. Although the food industry routinely uses chemical sanitizers to disinfect post-harvest fresh produce, it remains unknown how sanitizer and fresh produce properties affect the risk of viral illness through fresh produce consumption. A quantitative microbial risk assessment model was conducted to estimate (i) the health risks associated with consumption of rotavirus (RV)-contaminated fresh produce with different surface properties (endive and kale) and (ii) how risks changed when using peracetic acid (PAA) or a surfactant-based sanitizer. The modeling results showed that the annual disease burden depended on the combination of sanitizer and vegetable type when vegetables were irrigated with RV-contaminated water. Global sensitivity analyses revealed that the most influential factors in the disease burden were RV concentration in irrigation water and postharvest disinfection efficacy. A postharvest disinfection efficacy of higher than 99% (2-log₁₀) was needed to decrease the disease burden below the World Health Organization (WHO) threshold, even in scenarios with low RV concentrations in irrigation water (i.e., river water). All scenarios tested here with at least 99.9% (3-log₁₀) disinfection efficacy had a disease burden lower than the WHO threshold, except for the endive treated with PAA. The disinfection efficacy for the endive treated with PAA was only about 80%, leading to a disease burden 100 times higher than the WHO threshold. These findings should be considered and incorporated into future models for estimating foodborne viral illness risks.     

Immigration Status and Farmwork: Understanding the Wage and Income Gap Across U.S. Policy and Economic Eras, 1989–2016

Population Research and Policy Review - An estimated 7.8 million people live and work in the United States without authorized status. We examined the extent to which legal status makes them...     

Obamacare in action: how access to the health care system contributes to immigrants’ sense of belonging

ABSTRACT

The Affordable Care Act (ACA) aimed to reduce stark health inequalities by providing universal health insurance to all Americans and long-term authorised immigrants. Later regulations, however, gave the 50 U.S. states latitude to choose the degree of coverage for their constituencies. In this paper, we explore how interactions with these diverse systems of care contribute to the incorporation of immigrants into America, especially among the most likely to remain uninsured: the working poor. We uncovered a process in which immigrants’ access to health coverage and care was informed by the procedural justice embedded in their interactions with representatives of the health care system. These interactions signalled to immigrants their deservingness in American society, operating as a system of incorporation in the most inclusive states and as a barrier to incorporation in the most exclusive ones. Repealing the ACA may exacerbate differences across states in access to health care among eligible immigrants and end the incipient transformation of the U.S. health care system into an agent of immigrant incorporation.