Comparing behavior under risk and under ambiguity in a lifecycle experiment

Experiments on intertemporal consumption typically show that people have difficulties in optimally solving such problems. Previous studies have focused on contexts in which agents are faced with risky future incomes and have to plan over long horizons. We present an experiment comparing decision making under certainty, risk, and ambiguity, over a shorter lifecycle. Results show that behavior in the ambiguity treatment is markedly different than in the risk condition and it is characterized by a significant pattern of under-consumption.     

Does Citizenship Status Matter in Canadian Agriculture? Workplace Health and Safety for Migrant and Immigrant Laborers

This article explores how precarious legal status circumscribes differential inclusion in the agricultural labor market and affects workers' lives through a comparative study of workplace health and safety among temporary migrant guest workers and immigrants in Canada. Original, multimethod research with South Asian immigrant and Mexican migrant farmworkers examines employment practices, working conditions, and health‐care access. We find that both groups engage in precarious work, with consequences for their health and safety, including immigrant workers with citizenship. Nevertheless, migrant guest workers are subject to more coercive forms of labor discipline and a narrower range of social protection than immigrants. We argue that while formal citizenship can mitigate some dimensions of precariousness for farmworkers racialized as non‐white, achieving a more just, safer food system will require broader policies to improve employer compliance and address legislative shortcomings that only weakly protect agricultural labor.     

Mexico's Political Future(s) in a Globalizing World Economy*

Dans cette étude, nous cherchons à démontrer que le devenir économique et politique du Mexique est étroitement liéà l'évolution du capitalisme mondial. Nous utilisons le concept de «réseaux ascen-dants>> pour analyser les processus qui se développent à l'échelle mondiale et nationale ainsi que leurs interactions. Notre objectif est précisément de théoriser sur ces interactions à l'échelle de l'État-nation et de décrire, en présentant plusieurs scénarios, les diverses façons dont le Mexique pourrait évoluer sur les plans économique et politique. Le Mexique s'intégrant de plus en plus au marché nord-américain, il est capital d'étudier la façon dont cette intégration va influer sur les processus à venir et sur les forces sociales susceptibles de lui faire prendre une direction plus souhaitable.
This paper proposes that the patterns of economic and political outcomes in Mexico are intimately related to global processes taking place in world capitalism. It develops a "bottom-up linkages" approach that takes into account both global and country-level processes and their interrelationships. The author's specific purpose is to theorize about the interaction of national and global processes on the political outcomes at the level of the nation-state, and to generate some future scenarios representing different combinations of more or less feasible political and economic outcomes in Mexico's future. Because Mexico is becoming increasingly integrated economically into North America, it is critical to specify the ways in which such integration affects such future processes, and to identify the social forces that might steer developments in more desirable directions.     

Tuberculosis status and social adaptation of Indochinese refugees

The relationship between tuberculosis and social adaptation of Indochinese refugees in Manitoba, Canada, is examined in 43 randomly selected refugees treated for active and inactive tuberculosis (cases) and their matched controls. Tuberculosis status did not significantly affect adaptation as measured by selected scales and indicators. Significant predictors of better personal well-being included a low number of family members outside the household in Manitoba, non-use of traditional medicine, female gender, and high individual income. Tuberculosis status was not a significant predictor.     

Atribuciones sobre el éxito y el fracaso: efectos del sexo y de la cultura

Resumen

Un total de 152 estudiantes universitarios de Bogotá, Colombia y el mismo número de una universidad en Chicago, Estados Unidos hicieron atribuciones sobre el éxito o el fracaso en la labores académicas de un individuo (hombre o mujer) que ellos desconocían. Posteriormente, estos mismos sujetos hicieron atribuciones para el éxito o el fracaso propio, de nuevo en una tarea académica. No se encontraron diferencias significativas debidas al sexo del sujeto en lo que concierne a las atribuciones del observador para el éxito o el fracaso del individuo que se evaluó. Los sujetos estadounidenses prefirieron hacer atribuciones internas para su propio comportamiento así como para el comportamiento de otros individuos mientras que los colombianos prefirieron hacer atribuciones con un locus de control externo. Las mujeres de ambos países consideraron las causas internas como más importantes para su propio éxito que los hombres aunque este patrón fue lo opuesto para una situación de fracaso.     

Microbiological and Modeling Approach to Derive Performance Objectives for Bacillus cereus Group in Ready‐to‐Eat Salads

In this article, the performance objectives (POs) for Bacillus cereus group (BC) in celery, cheese, and spelt added as ingredients in a ready‐to‐eat mixed spelt salad, packaged under modified atmosphere, were calculated using a Bayesian approach. In order to derive the POs, BC detection and enumeration were performed in nine lots of naturally contaminated ingredients and final product. Moreover, the impact of specific production steps on the BC contamination was quantified. Finally, a sampling plan to verify the ingredient lots' compliance with each PO value at a 95% confidence level (CL) was defined. To calculate the POs, detection results as well as results above the limit of detection but below the limit of quantification (i.e., censored data) were analyzed. The most probable distribution of the censored data was determined and two‐dimensional (2D) Monte Carlo simulations were performed. The PO values were calculated to meet a food safety objective of 4 log₁₀ cfu of BC for g of spelt salad at the time of consumption. When BC grows during storage between 0.90 and 1.90 log₁₀ cfu/g, the POs for BC in celery, cheese, and spelt ranged between 1.21 log₁₀ cfu/g for celery and 2.45 log₁₀ cfu/g for spelt. This article represents the first attempt to manage the concept of PO and 2D Monte Carlo simulation in the flow chart of a complex food matrix, including raw and cooked ingredients.     

Expectations of Career Counseling and Their Effect on Client Satisfaction

Although there has been growing attention to clients' expectations of career counseling, more research is necessary to clarify the role of these expectations in shaping client satisfaction at the end of the intervention. On the basis of expectation confirmation theory, this study examined the indirect effect of clients' initial expectations on overall satisfaction through the perceived performance and final confirmation of expectations. We also explored whether this indirect effect is dependent on counselors' initial expectations. Longitudinal data were collected on 83 counselor-client dyads involved in a career counseling intervention in northeast Italy. Results confirmed that clients' initial expectations predicted overall satisfaction with the intervention through the subsequent mediation of perceived performance and confirmation of clients' expectations. The moderating role of the counselors' initial expectations was not confirmed. These findings imply that career counselors should invest their efforts in managing clients' expectations.     

Individual vs. group decision-making: an experiment on dynamic choice under risk and ambiguity

This paper focuses on the comparison of individual and group decision-making, in a stochastic inter-temporal problem in two decision environments, namely risk and ambiguity. Using a consumption/saving laboratory experiment, we investigate behaviour in four treatments: (1) individual choice under risk; (2) group choice under risk; (3) individual choice under ambiguity and (4) group choice under ambiguity. Comparing decisions within and between decision environments, we find an anti-symmetric pattern. While individuals are choosing on average closer to the theoretical optimal predictions, compared to groups in the risk treatments, groups tend to deviate less under ambiguity. Within decision environments, individuals deviate more when they choose under ambiguity, while groups are better planners under ambiguity rather than under risk. Our results extend the often observed pattern of individuals (groups) behaving more optimally under risk (ambiguity), to its dynamic dimension.

     

The stochastic component in choice and regression to the mean

In this article, we illustrate experimentally an important consequence of the stochastic component in choice behaviour which has not been acknowledged so far. Namely, its potential to produce ‘regression to the mean’ (RTM) effects. We employ a novel approach to individual choice under risk, based on repeated multiple-lottery choices (i.e. choices among many lotteries), to show how the high degree of stochastic variability present in individual decisions can distort crucially certain results through RTM effects. We demonstrate the point in the context of a social comparison experiment.     

Atencingo Revisited: Political Class Formation and Economic Restructuring in Mexico's Sugar Industry1

Abstract Sugarcane growers have had a close relationship to the state since the 1940s when a series of decrees established a heavy state intervention in the sugar industry, which then became highly regulated. Growers became loyal to the state in exchange for low but secure incomes and other social guarantees. After the introduction of economic liberalism in Mexico during the mid-1980s (called "neoliberalism" in Mexico), the sugar industry became largely de-regulated, and sugar mills were reprivatized. This article explores the process of political class formation in the sugarcane region of Atencingo, in the state of Puebla. Whether cane growers posit peasant, proletarian, or peasant-entrepreneurial demands is examined, as is the character of organizations and alliances that direct producers have established since the 1930s (oppositional, popular-democratic, or bourgeois-hegemonic). This paper documents the emergence of a peasant-entrepreneurial class and presents initial results from a survey questionnaire administered in 1995. Rather than offering an economic argument based on a narrowly defined class position, this explanation emphasizes the prevailing regional cultures, the forms of state intervention, and the types of leadership-the crucial mediating determinations that explain political outcomes in Atencingo and other regions of rural Mexico.