Do Teacher Strikes Harm Educational Attainment of Students?

This paper investigates the effects of a teacher strike on student achievement. From May 1990 until November 1990 teachers in the French community of Belgium stroked to obtain a salary increase. We exploit the political division of Belgium in a French community and a Flemish community, with similar educational institutions, for estimating the long‐term effects of the strikes. Based on a difference‐in‐differences approach, using data from two different surveys, we find some evidence that the strikes reduced educational attainment and increased class repetition. We also find that the strikes led to a significant reallocation of students to a lower level of higher education. Overall, the results suggest that teacher strikes can lead to substantial costs for those not involved in the conflict.     

Parameter identification for a stochastic logistic growth model with extinction

We consider a stochastic logistic growth model given by a stochastic differential equation, for which extinction can occur. We first propose appropriate adaptation of some standard inference methods when the process is observed at discrete time. Second, we show that the individual birth and death can be identified separately to some extent.     

Evidence-based risk factors for adverse health outcomes in older patients after discharge home and assessment tools: a systematic review

The current health care system is discharging elderly patients "quicker" and "sicker" from acute care facilities. Consequently, hospital readmission is common; however, readmission may be only one aspect of adverse outcomes of importance to social work discharge planners. The early recognition of risk factors might ensure a successful transition from the hospital to the home. A systematic review was conducted to identify factors associated with adverse outcomes in older patients discharged from hospital to home. Using a content analysis, factors were characterized in five domains: demographic factors, patient characteristics, medical and biological factors, social factors, and discharge factors. The most frequently reported risks were depression, poor cognition, comorbidities, length of hospital stay, prior hospital admission, functional status, patient age, multiple medications, and lack of social support. A systematic search identified four discharge assessment tools for use with the general population of elderly patients. Practice and research implications are offered.     

Intervention fidelity in psychosocial oncology

Intervention fidelity refers to strategies that practitioners and researchers use to monitor, enhance, or evaluate the accuracy and consistency of the delivery of an intervention to ensure that it is implemented according to how it was planned. The purpose of the authors in this article was to evaluate intervention fidelity in the psychosocial oncology intervention effectiveness research. Twenty-eight studies located in a previous systematic review on psychosocial oncology intervention effectiveness comprised the sample for this research. A treatment fidelity checklist was applied to each study independently by each author (MP & PB). Percent agreement between raters ranged from 68% to 100% (M = 89%). Overall, the mean proportion of adherence was 0.57 (SD 0.12), which may be considered to be moderate fidelity. Critical examination and applicability of the checklist in examining and assessing intervention fidelity were highlighted and discussed. Overall, intervention fidelity was adequately addressed in the psychosocial oncology intervention effectiveness research, and integrity was confirmed in the majority of studies reviewed. Suggestions for future psychosocial oncology effectiveness research were made.     

History and the National Sensorium: Making Sense of Polish Mythology

Based on archival and ethnographic data from the Polish case, this article argues that national mythology is structured by historical events and embodied in visual and material cultures, which in turn frame national subjects’ understanding of the present. It suggests that the convergence and exchange between diverse sites of material expression and sensory perception, and their compression into trans-temporal nodes—what I call the “national sensorium”—makes them especially resilient. Even so, as historically constructed, contingent and contested systems of myths, the extent to which national mythologies can shape national identity or mobilize toward nationalist action depends on the specific historical contexts in which they are deployed. Theoretically, this article joins historical and phenomenological approaches to propose a framework for thinking about the constitution, persistence and shifting social and political valences of national mythologies.     

Valuing mortality risk reductions from environmental, transport, and health policies: a global meta-analysis of stated preference studies

We conduct, to our knowledge, the first global meta-analysis (MA) of stated preference (SP) surveys of mortality risk valuation. The surveys ask adults their willingness to pay (WTP) for small reductions in mortality risks, deriving estimates of the sample mean value of statistical life (VSL) for environmental, health, and transport policies. We explain the variation in VSL estimates by differences in the characteristics of the SP methodologies applied, the population affected, and the characteristics of the mortality risks valued, including the magnitude of the risk change. The mean (median) VSL in our full data set of VSL sample means was found to be around $7.4 million (2.4 million) (2005 U.S. dollars). The most important variables explaining the variation in VSL are gross domestic product (GDP) per capita and the magnitude of the risk change valued. According to theory, however, VSL should be independent of the risk change. We discuss and test a range of quality screening criteria in order to investigate the effect of limiting the MA to high-quality studies. When limiting the MA to studies that find statistically significant differences in WTP using external or internal scope tests (without requiring strict proportionality), we find that mean VSL from studies that pass both tests tend to be less sensitive to the magnitude of the risk change. Mean VSL also tends to decrease when stricter screening criteria are applied. For many of our screened models, we find a VSL income elasticity of 0.7-0.9, which is reduced to 0.3-0.4 for some subsets of the data that satisfy scope tests or use the same high-quality survey.     

Does Overconfidence Bias Explain Volatility During the Global Financial Crisis?

This paper explores the problem of the current global financial crisis, using a behavioral perspective. Particularly, the main objective of this paper is to test whether overconfidence bias can explain excessive volatility witnessed during global financial crisis in developed and emerging equity markets. Empirical results of EGARCH estimated models show an asymmetric effect of volatility for all equity market indexes. The relation between excessive trading volume of overconfident investors and excessive prices volatility is then estimated. The results indicate that conditional volatility is positively related to trading volume caused by overconfidence bias. This finding provides strong statistical support to the presence of overconfidence bias among investors in developed and emerging stocks markets. This cognitive bias contributes to the exceptional financial instability that erupted in 2008. However, during the subprime financial crisis period overconfidence bias cannot explain volatility because of the loss of confidence by investors in financial markets.     

Fight or Flight? Factors Influencing Child Welfare Workers' Propensity to Seek Positive Change or Disengage from Their Jobs

ABSTRACT

This cross-sectional study tests a theory-driven, conceptual model examining factors supporting or hindering child welfare workers' (n = 359) efforts to speak up (voice) or disengage psychologically (neglect) or physically (exit) from their jobs. Based on path analysis results, key findings indicate that workers who feel included in decision-making are more likely to exercise voice and less likely to engage in neglect. In contrast, workers who experienced supervisory and organizational support are less inclined to exit. The findings should be instructive to scholars and practitioners interested in capturing how employees' responses to stressful and complex work environments are expressed.