An experimental investigation of the impact of ambiguity on the valuationof self-insurance and self-protection

We build two experimental markets to examine individual valuations of risk reductions with two risk-management tools: self-insurance and self-protection. We find no positive evidence that the risk-reducing mechanisms constitute a “frame.” Ambiguity in the probability on average affects valuation only weakly, and changes in the representation of ambiguity do not alter valuation. Finally, unlike the results obtained by Hogarth and Kunreuther for the case of market insurance, our findings do not provide a strong support for the “Anchoring and Adjustment” ambiguity model.     

Disasters,migrations, and the unintended consequences of urbanization: What’s the harm in getting out of harm’s way?

Under many circumstances, the global rural-to-urban migration trend may be increasingly adopted as a short-term coping strategy to shifting ecologies and natural disasters. While offering certain benefits from macro-level economic and public health perspectives, these migrations may also have unintended psychological consequences that are not easily understood through traditional disaster studies or cost–benefit analyses. If the goal of disaster and climate change research is to promote successful adaptation, then the long-term psychological well-being of people who have survived disaster and either adapted in situ or migrated into urban environments, is paramount. This article integrates research on disasters and climate change-induced migration with emerging perspectives from environmental psychology and the psychology of natural disasters to consider the potential costs of particular migration scenarios. We apply this analysis to the case of Shishmaref, Alaska, a rural Iñupiat community on the northwest coast of Alaska facing habitual flooding disasters linked to climate change. Findings from Shishmaref illustrate the cultural vitality of subsistence landscapes and the potential health risks of compromised human–ecological relationships due to migration and/or displacement. Recommendations for policy makers and researchers are offered for promoting long-term well-being among affected individuals and communities.     

Variability in Physical Constant Parameter Values from Standard Data Sources and the Implication of This Variability for Risk Analysis

Physical property values are used in environmental risk assessments to estimate media and risk-based concentrations. However, considerable variability has recently been reported with such values. To evaluate potential variability in physical parameter values supporting a variety of regulatory programs, eight data sources were chosen for evaluation, and chemicals appearing in at least four sources were selected. There were 755 chemicals chosen. In addition, chemicals in seven environmentally important subgroups were also identified for evaluation. Nine parameters were selected for analysis-molecular weight (MolWt), melting point (MeltPt), boiling point (BoilPt), vapor pressure (VP), water solubility (AqSOL), Henry's law constant (HLC), octanol-water partition coefficient (Kow), and diffusion coefficients in air (Dair) and water (Dwater). Results show that while 71% of constituents had equal MolWts across data sources, <3% of the constituents had equivalent parameter values across data sources for AqSOL, VP, or HLC. Considerable dissimilarity between certain sources was also observed. Furthermore, measures of dispersion showed considerable variation in data sets for Kow, VP, AqSOL, and HLC compared to measures for MolWt, MeltPt, BoilPt, or Dwater. The magnitude of the observed variability was also noteworthy. For example, the 95th percentile ratio of maximum/minimum parameter values ranged from 1.0 for MolWt to well over 1.0E + 06 for VP, and HLC. Risk and exposure metrics also varied by similar magnitudes. Results with environmentally important subgroups were similar. These results show that there is considerable variability in physical parameter values from standard sources, and that the observed variability could affect potential risk estimates and perhaps risk management decisions.     

Historical Thinking and Sports History: A Case Study Using the Brooklyn Dodgers

Abstract

This article discusses how the history of sports can serve as way to understand abstract concepts associated with local history and social studies education. An introductory discussion outlines how sports can engage and interest students, focusing especially on ideas related to history thinking (such as change and continuity). A case study using the Brooklyn Dodgers’ move to Los Angeles is used to illustrate these ideas, focusing on themes associated with suburbanization and urban renewal. A lesson plan is also provided.     

HDDA: DataSifter: statistical obfuscation of electronic health records and other sensitive datasets

There are no practical and effective mechanisms to share high-dimensional data including sensitive information in various fields like health financial intelligence or socioeconomics without compromising either the utility of the data or exposing private personal or secure organizational information. Excessive scrambling or encoding of the information makes it less useful for modelling or analytical processing. Insufficient preprocessing may compromise sensitive information and introduce a substantial risk for re-identification of individuals by various stratification techniques. To address this problem, we developed a novel statistical obfuscation method (DataSifter) for on-the-fly de-identification of structured and unstructured sensitive high-dimensional data such as clinical data from electronic health records (EHR). DataSifter provides complete administrative control over the balance between risk of data re-identification and preservation of the data information. Simulation results suggest that DataSifter can provide privacy protection while maintaining data utility for different types of outcomes of interest. The application of DataSifter on a large autism dataset provides a realistic demonstration of its promise practical applications.     

Drivers of Change in the Democratic Republic of Congo: The Role of China in Re-Shaping the Country

Africa has always been potentially one of the richest continents in the world, but, due to a series of causes (colonization and decolonization process, wars, dictatorships etc.) it has never reached its full potential. The fight against poverty has been carried out by different institutions at the multilateral and bilateral level during the last 30 years, but the route toward economic development seems to be still long for African countries. This paper will focus on the analysis of the new approach to international cooperation introduced by the People’s Republic of China in order to exchange rights of exploitation of Africa’s mining and natural resources with large amounts of capital without any conditionality. The case-study which will be considered is the agreement concluded between the People’s Republic of China and the Democratic Republic of Congo.     

“Koe wai hoki koe?!”, or “Who are you?!”: Issues of trust in cross‐cultural collaborative research

Abstract

Cross‐cultural research designs are increasingly employed in the New Zealand context to investigate a range of complex social and environmental issues. However, there is little guidance for researchers who work for mainstream organisations and hapū (subtribe(s)) and iwi (tribe(s)) on how to undertake cross‐cultural collaborative research. Trust is a key issue that makes cross‐cultural research possible and it is surprising that issues relating to trust have not featured widely in the literature. In this paper, we reflect on our experiences working cross‐culturally and collaboratively with a hapū in Northland, New Zealand. We discuss how a mainstream research organisation worked with a community health trust and developed a working relationship with a hapū, forming the basis of a community‐driven collaborative evaluation of a central government‐funded project. Key findings were the establishment of a tuākana‐tēina relationship (where teacher and learner are interchangeable) between the members of the collaborative research team and the employment of appropriate research methods to develop a research agenda that ensured everyone would benefit from the research.     

Family, fertility, and sex ratios in the British Caribbean

Abstract This paper re-evaluates the currently held view that unstable forms of conjugal unions depress fertility in the British Caribbean. It is shown that previous investigators overlooked the important variable of persistent male shortages at the mating ages caused by heavy male emigration. Fertility trends are observed and the conclusion reached that male emigration (independent variable) has not adversely affected fertility because the 'informal' polygynous character of the mating system acts as an intermediate variable mitigating the effect of the independent variable on fertility. Given these male shortages it is argued that a trend toward greater stability in conjugal relations would not, as previously assumed, result in higher fertility because permanent female celibacy and the average age of first entry into sexual unions for females would rise. Finally, the paper concludes by commenting on a recent discussion concerning the causal relationship between male shortages and the persistence of marital instability in the British Caribbean. The position is taken that both of these conditions are caused by social and economic factors which are not likely to change in the near future.     

The child in child protection: Invisible and unheard

The paper presents findings from a qualitative study of four child death reviews published in Australia. The study was informed by the theoretical concept of childism. A critical social research methodology facilitated the exposure of childist dynamics in statutory child protection. The transformation of child protection practices and systems has traditionally relied on the imposition of never‐ending structural changes, policies, and procedures. This paper proposes that transformation and the erosion of childist dynamics is contingent on humane and ethical statutory child protection agencies.