Multidimensional Approach for Tsunami Vulnerability Assessment: Framing the Territorial Impacts in Two Municipalities in Portugal

This study presents a new multidimensional methodology for tsunami vulnerability assessment that combines the morphological, structural, social, and tax component of vulnerability. This new approach can be distinguished from previous methodologies that focused primarily on the evaluation of potentially affected buildings and did not use tsunami numerical modeling. The methodology was applied to the Figueira da Foz and Vila do Bispo municipalities in Portugal. For each area, the potential tsunami‐inundated areas were calculated considering the 1755 Lisbon tsunami, which is the greatest disaster caused by natural hazards that ever occurred in Portugal. Furthermore, the four components of the vulnerability were calculated to obtain a composite vulnerability index. This methodology enables us to differentiate the two areas in their vulnerability, highlighting the characteristics of the territory components. This methodology can be a starting point for the creation of a local assessment framework at the municipal scale related to tsunami risk. In addition, the methodology is an important support for the different local stakeholders.     

Social capital and public goods

Previous literature suggests positive relationships between social capital, pro-social behavior and subsequent economic development. We analyze the relationship between social networks and trust (two measures of social capital) and self-reported charitable contributions of time and/or money (pro-social behavior) using data collected from two ethnically distinct, low-income neighborhoods. We find that large social networks are positively related to charitable contributions, but that the effects of trust are less robust. We also find that social networks that are more geographically dispersed tend to be larger. Our results indicate that the social capital in a neighborhood is more important than ethnicity, ethnic diversity, or other demographic information in understanding public goods contributions.     

The Leader as the Face of a Crisis: Philip Morris' CEO's Speeches During the 1990s

This research investigated Philip Morris' crisis communication management strategies during the 1990s through the study of its CEO's speeches. This analysis explored the company's maneuvers to camouflage controversies in acceptable social expectations. Pairing framing theory with centering resonance analysis, this research found 3 distinct frames: profitable multinational (1994–1996), litigation target (1997–1998), and corporate good citizen (1999–2001). Avoidance of talk about health issues indicated the company's strategic adaptation to a shifting legal and public opinion climate, as it sought to authenticate its right to do business by reframing the notion of corporate responsibility away from healthy products and toward high-price philanthropy.     

Hypertension in aging: physical activity as primary prevention

In most physiologic systems, there is considerable evidence that the normal aging processes do not result in significant impairment or dysfunction in the absence of pathology and under resting conditions. However, in response to a stress, the age-related reduction in physiologic reserves causes a loss of regulatory or homeostatic balance. This happens before an individual notices that something is wrong. An additional consequence of age-related changes is an increased perception of effort associated with submaximal work. Thus, a vicious cycle is set up, leading to decreasing exercise capacity, resulting in an elevated perception of effort, subsequently causing avoidance of activity, and finally feeding back to exacerbation of the age-related declines secondary to disuse. Sedentary behavior is an important risk factor for chronic disease morbidity and mortality in aging. However, there is a limited amount of information on the type and amount of activity needed to promote optimal health and function in older people [19]. The purpose of this review is to discuss the important role of exercise training as a primary prevention tool to hypertension. In addition, this review will address the topic of the recommended amount of physical activity required for health promotion along with the current exercise guidelines.     

When risky decisions generate externalities

Many risky decisions generate either positive externalities (e.g., opening a small business, engaging in research and development, vaccinating) or negative externalities (e.g., smoking, reckless driving, unprotected sex). I develop a new experimental framework for evaluating risk tolerance when risky decisions that generate externalities by modifying the allocation task of Gneezy and Potters (1997). In the ‘risk with externalities’ framework, for each unit increase in a risky allocation, an external cost or benefit is imposed upon a group member. I further vary the magnitude of the external effect to investigate the sensitivity of risk taking to the marginal external effect. Results indicate that risky decisions are driven by a combination of social and non-social factors. When individuals both impose and receive externalities, the preferred level of risk taking is lower if the externality is negative, regardless of the magnitude of the marginal external effect. Risk taking is then further affected by the magnitude of the marginal external effect. For individuals who only impose externalities, behavior is consistent with a disutility from imposing harm (but not a sensitivity to the magnitude of the external effect). For those who only receive externalities, individuals increase (decrease) their risky allocation when they are in a decision environment where they receive external benefits (costs). Additional treatments suggest that results are consistent with decreasing relative risk aversion plus an additional disutility from either imposing or receiving harmful externalities.

     

School environment and risk preferences: Experimental evidence

Using a field experiment with high school students, we evaluate the development of risk preferences. Examining the impact of school characteristics on preference development reveals both peer and quality effects. For the peer effect, individuals in schools with a higher percentage of students on free or reduced lunches (hence a higher proportion of low-income peers with whom to interact) are significantly more risk averse. For the quality effect, individuals in schools with smaller class sizes and a higher percentage of educators with advanced degrees have higher, more moderate levels of risk aversion. We further discuss economic, cognitive and emotional development theories of risk preferences. Data show demographic-related patterns: girls are more risk averse on average, while taller and nonwhite individuals are more risk tolerant.     

Decision process of allocating projects to project managers

Allocating projects to project managers (PM) is a crucial decision in project management. Choosing the PM must be undertaken in a structured way, and thereby take into account the needs of the project and the PM’s competences and availability. The proposed model optimises the total time that PMs have available and takes into account the constraint of the switchover time loss within the mathematical programming. It model is part of a three-stage approach where: (1) projects are sorted using a multicriteria approach; (2) PMs are sorted using a multicriteria approach; and (3) the final allocation to intra-classes of projects is made using the optimisation model. This proposal contributes to aiding decision-makers involved in allocating projects: by respecting the limit of the time that PMs have available, or by extrapolating PMs’ available hours in which case overtime will have to be used. The model is applied in a Brazilian Energy Company.     

Is It Always Necessary to Take Sample Selection into Account?

We compare a simple ordinary least squares (OLS) with the maximum likelihood estimation of the Tobit I and Tobit II regression models, in the selected sample. We propose a new measure to quantify the performance of OLS.