Assessing Trade‐offs among Multiple Objectives for Humanitarian Aid Delivery Using Expert Preferences

Humanitarian aid agencies deliver emergency supplies and services to people affected by disasters. Scholars and practitioners have developed modeling approaches to support aid delivery planning, but they have used objective functions with little validation as to the trade‐offs among the multiple goals of aid delivery. We develop a method to value the performance of aid delivery plans based on expert preferences over five key attributes: the amount of cargo delivered, the prioritization of aid by commodity type, the prioritization of aid by delivery location, the speed of delivery, and the operational cost. Through a conjoint analysis survey, we measure the preferences of 18 experienced humanitarian logisticians. The survey results quantify the importance of each attribute and enable the development of a piecewise linear utility function that can be used as an objective function in optimization models. The results show that the amount of cargo delivered is the most valued objective and cost the least important. In addition, experts prioritize more vulnerable communities and more critical commodities, but not to the exclusion of others. With these insights and the experts’ utility functions, better humanitarian objective functions can be developed to enable better aid delivery in emergency response.     

A Mile‐Wide Gap: The Evolution of Hispanic Political Emergence in the Deep South*

Objective. Prior to the 1990s, the size of the Hispanic population in the Deep South was negligible. Since that time, states in this region have experienced an explosive growth in members of this ethnic group. Methods. Georgia and the Carolinas are among five states that maintain registration and turnout files by ethnicity. We make use of these political data in conjunction with demographic information from the Census to create a snapshot of Hispanic political emergence in the southeast. Results. A sizable gap exists between the size of the Hispanic population in the southeast and levels of political participation on the part of Latinos. Much of the explanation for this observation centers on the fact that the bulk of recent migration to the region has been by Hispanics who are not U.S. citizens. Participation rates among Hispanic citizens, however, were also found to lag behind those of other racial groups in the region. Conclusions. Although it is likely that Hispanics will become a sizable political force in the Deep South, it should be noted that the gulf between latent political influence and actual political power may take quite some time to close.     

Lágrimas,risas y amor: Mexico's Most Popular Romance Comic Book

Romance comic books, strips, and magazines enjoy immense popularity in the United States. The same is true in Mexico where LLgrimas, risasy amor, the country's most popular romance comic book, sells between 1.2 and 1.5 million copies per week. In his study, Charles Tatum discusses some of the publication's most important aspects including its creators, readership, circulation, and basic plot and character types and settings. He finds that, as in other populargenres Ldgrimas can be reduced to basic narrative formulas which, although they are repetitive, are presented in an interesting fashion and with sufficient variety to continue to attract large numbers of readers. In a comparative section, Tatum observes that this Mexican romance comic book closely resembles its American counterpart in terms of its implicit values and attitudes. Ligrimas is both politically and socially conservative, mute regarding politics and tending to reinforce dominant values towards sex roles, the family and marriage. Readers will find some interesting parallels between Lagrimas and the fotonovelas analyzed in Flora's study.     

The erosion of democracy in many countries: what should be group work’s response?

ABSTRACT

In this paper we describe democracy and evidence of its erosion globally and in the US. Specific concerns about the erosion of democratic values are discussed, and how this erosion manifests in group behaviors. We call on group work to consider how the global expansion of repressive policies and practices that empower privileged and the elite impact group member participation, especially members of targeted minority groups. Through examples we demonstrate ways group work practice can champion the protection of all member voices, and preserve a structure and mechanisms that model such protections for all its participants.     

Reconsidering Scale: Using Geographic Information Systems to Support Spatial Planning Conversations

How do planners compose plans that fit complex environmental systems? How do they align mismatched ecological and governance landscapes? We studied a small group of practitioners planning for groundwater sustainability to explore these questions. We recorded and transcribed their talk as they worked with geovisualization tools to diagnose and resolve future water shortages. Our findings showed how these planners crossed scales and levels as they reconsidered the relationships between groundwater supplies and consumers. While they recognized the urgency of aquifer overdraft, they complained about a lack of fine-grained hydrogeologic data, which they rely on for managing local water shortages.     

‘Let's share!’ The mediating role of employees' self-determination in the relationship between transformational and shared leadership and perceived knowledge sharing among peers

Building on social-exchange and self-determination theory, this study aimed to contribute to the scholarly literature on leadership and knowledge sharing by simultaneously testing how shared and transformational leadership and their interrelatedness may foster employees' perceptions of knowledge sharing behaviour among peers. Additionally, we investigated the mediating role of employees' basic psychological needs satisfaction (in terms of autonomy, competence and relatedness, respectively) as an additional explanatory mechanism to reveal how shared and transformational leadership may foster individuals' perceptions of knowledge sharing behaviour among peers. We employed PLS structural equation modelling to analyse survey data obtained from professionals in an R&D unit of a knowledge-intensive firm. We found shared leadership to be the most important factor enhancing employees' perceptions of knowledge sharing among peers, both directly and indirectly through employees' satisfaction of the need for autonomy. Transformational leadership was found to foster employees' knowledge sharing ultimately, through shared leadership and the need for autonomy satisfaction. We concluded that shared forms of leadership supplemented with transformational leadership on the part of formal leaders are important in contemporary work environments as they can foster employees' perceptions of knowledge sharing among peers and contribute towards employees' self-determination, which ultimately enhances perceptions of knowledge sharing among peers.     

Managing Safety‐Related Disruptions: Evidence from the U.S. Nuclear Power Industry

Low‐probability, high‐impact events are difficult to manage. Firms may underinvest in risk assessments for low‐probability, high‐impact events because it is not easy to link the direct and indirect benefits of doing so. Scholarly research on the effectiveness of programs aimed at reducing such events faces the same challenge. In this article, we draw on comprehensive industry‐wide data from the U.S. nuclear power industry to explore the impact of conducting probabilistic risk assessment (PRA) on preventing safety‐related disruptions. We examine this using data from over 25,000 monthly event reports across 101 U.S. nuclear reactors from 1985 to 1998. Using Poisson fixed effects models with time trends, we find that the number of safety‐related disruptions reduced between 8% and 27% per month in periods after operators submitted their PRA in response to the Nuclear Regulatory Commission's Generic Letter 88‐20, which required all operators to conduct a PRA. One possible mechanism for this is that the adoption of PRA may have increased learning rates, lowering the rate of recurring events by 42%. We find that operators that completed their PRA before Generic Letter 88‐20 continued to experience safety improvements during 1990–1995. This suggests that revisiting PRA or conducting it again can be beneficial. Our results suggest that even in a highly safety‐conscious industry as nuclear utilities, a more formal approach to quantifying risk has its benefits.