Presenteeism and health over time among Chinese employees: The moderating role of self-efficacy

The aim of this study was two-fold: first, to examine both the immediate and the lasting effects of presenteeism on health; second, to explore the moderating effect of self-efficacy on the presenteeism-health relationship in a Chinese context. We employed a two-wave study design in which presenteeism, health (i.e. physical health, mental health and exhaustion), and self-efficacy were assessed at Time 1; health was measured again at Time 2 three months later. We surveyed a diverse sample of 345 full-time Chinese employees working in Taiwan and mainland China. Hierarchical regression analyses showed that presenteeism over the previous six months was negatively related to employees' physical health, mental health and exhaustion at Time 1. However, we found no association between presenteeism and health at Time 2, after controlling for the baseline level of health, indicating that presenteeism may not have a lasting effect. Self-efficacy was found to moderate the relationships between presenteeism and all three aspects of health at Time 2, suggesting that for some individuals presenteeism may not on balance be a bad thing. The study sheds light on the association between presenteeism and health. The findings on self-efficacy also extend the literature to incorporate individual characteristics in the presenteeism context.     

‘We share similar struggles’: how a Vietnamese immigrant youth organizing program shapes participants’ critical consciousness of interracial tension

This article examines Homeward Bound, a political education youth organizing program for Vietnamese immigrant youth in Philadelphia, Pennsylvania. Inspired by Paulo Freire’s critical pedagogy theory, the program sought to empower learners to challenge their pre-existing knowledge and experience of interracial relations. Drawing on data from observations, interviews, and document reviews, we describe the process by which the program shaped Vietnamese immigrant youth’s critical consciousness of Vietnamese/Asian-black interracial tension. While some participants expressed apprehension and prejudice toward African Americans, particularly in the early days of the program, by the end, participants demonstrated knowledge retained from lessons and activities on the shared history of Vietnamese immigrants and African Americans. Participants also identified roots of and offered solutions to interracial tension. This study illuminates the role of immigrant youth organizing programs in resolving interracial tension in multiracial contexts.     

Earthquake Beliefs and Adoption of Seismic Hazard Adjustments

This study investigated the prevalence of both accurate and erroneous earthquake-related beliefs among a sample of Southern California college students and the relationship between their endorsement of earthquake beliefs and adoption of seismic hazard adjustments. In addition, the study examined the effects of an experimental earthquake education program and the impact of need for cognition on this program. The data revealed a significant degree of agreement with earthquake myths, a generally low level of correlation between earthquake beliefs and the level of hazard adjustments, and a significant effect of hazard information on the endorsement of accurate earthquake beliefs and increases in hazard adjustment. Compared with the "Earthquake Facts (Only)" format, an "Earthquake Myths versus Facts" format was slightly more useful for dispelling erroneous beliefs. Further, there was a tendency for those who were high in need for cognition to have higher levels of hazard adjustment. Finally, there was weak support for the hypothesis that those who were low in need for cognition would develop more accurate earthquake beliefs and higher levels of hazard adjustment in the "Earthquake Myths versus Facts" information condition.     

Health Status of Temporary Migrants in Urban Areas in Vietnam1

The rapid economic growth after economic reform, known in Viet Nam as “Doi Moi”, and the growing scope of urban migration raise specific questions for social policy, including migration and health policies. This paper compares issues of health status and its determinants as they affect temporary urban migrants versus permanent urban migrants and non‐migrants. The analyses utilize multivariate logistic regression and data from the 1997 Vietnam Migration and Health Survey. The results show that temporary migrants staying in guest houses are most vulnerable to health problems. Though most of them are initially healthier, their reported health deteriorates faster than other groups of urban residents. The findings also present important implications for the current migration and health policies in Vietnam: 1) A special attention should be given to temporary migrants in guest houses; 2) Different priorities in health policy should be applied to different groups of migrants and non‐migrants; 3) The current population management policy by registration system needs to be reviewed; 4) Providing clean water is one of the most important ways to improve health of temporary migrants; 5) Targeting educational investments and reducing unemployment would likely to improve overall health; 6) A higher priority on health policies targeting women would likely pay dividends, and; 7) Improving management and collaboration between government offices and interested partners is important to improving health status and reducing inequity.     

Local asymptotic properties for Cox-Ingersoll-Ross process with discrete observations

In this paper, we consider a one-dimensional Cox-Ingersoll-Ross (CIR) process whose drift coefficient depends on unknown parameters. Considering the process discretely observed at high frequency, we prove the local asymptotic normality property in the subcritical case, the local asymptotic quadraticity in the critical case, and the local asymptotic mixed normality property in the supercritical case. To obtain these results, we use the Malliavin calculus techniques developed recently for CIR process together with the estimation for positive and negative polynomial moments of the CIR process. In this study, we require the same conditions of high frequency and infinite horizon as in the case of ergodic diffusions with globally Lipschitz coefficients studied earlier in the literature. However, in the non-ergodic cases, additional assumptions on the decreasing rate are required due to the fact that the square root diffusion coefficient of the CIR process is not regular enough.     

Board size and firm value: evidence from Australia

We study the effect of board size on firm value in Australia. Using a large sample of Australian firms over the period 2001–2011, we find strong evidence of a negative relationship. We show that firms with a large board are associated with CEO compensation that is sensitive to firm size, but not to firm performance. This incentive to accumulate assets is congruent with the fact that firms with a large board also exhibit lower operating performance and higher operating costs. Furthermore, we find that the effect of board size is stronger in small firms. This result might explain why earlier studies, which focused on large Australian firms, found board size to have little impact on firm value.     

Does smoking have a causal effect on weight reduction?

This study examines the relationship between smoking and body mass index (BMI) with a simultaneous equations system allowing for censoring and endogeneity of the number of cigarettes smoked, which alleviates simultaneity bias caused by unobserved heterogeneity and expansion bias by censoring in the regressor. The results suggest smoking may not have a strong long-term causal effect on body weight after controlling for the endogeneity. The negative relationship between smoking and BMI reported in the literature is potentially attributable to the aforementioned biases and should be interpreted with caution. The statistical procedure developed can be useful in other applications with a censored endogenous regressor.

Nonparametric regression in a statistical modified Helmholtz equation using the Fourier spectral regularization

In this paper, we deal with the Cauchy problem for the modified Helmholtz equation. We consider two models of data: the bounded variance model and the i.i.d. model. The trigonometric estimators of nonparametric regression is applied to solve the problem. In addition, the general forms of regularization parameter corresponding to the pointwise mean squared error and the mean integrated squared error are discussed in detail. The minimax rate convergence corresponding to the bounded variance model is also presented. In the i.i.d. model, we construct the asymptotic confidence interval for the solution of the problem. Finally, we give some numerical experiments and discuss the obtained results.     

越南近年来的文化遗产保护及社会参与

文章分析了越南在非物质文化遗产保护与发展工作中所遇到的挑战,提出通过提高社会各个角色、尤其是传统文化原发地的社会成员的社会参与度来加强非物质文化遗产保护。     

Does nurture matter: Theory and experimental investigation on the effect of working environment on risk and time preferences

Building upon the reference dependent preferences model, we develop a theoretical framework to examine the relationship between environment and preferences. To verify the model’s prediction, we use a combined artefactual field experiment and household survey data in Vietnam to investigate whether involvement is risky and has long-run targeted benefits, thereby causing fishermen to exhibit different risk and time preferences than workers in other occupations. Using a structural model approach, we integrate prospect theory and hyperbolic time discounting into a single framework, to simultaneously estimate and correlate the parameters of both risk and time preferences with other demographic variables. The key finding that fishermen are found to be less risk-averse and more patient than others asserts the theoretical prediction about the influence of the working environment on preferences.