The risk implications of diversification: Integrating the effects of product and geographic diversification

The risk implications of product diversification have received considerable attention from scholars. However, our understanding of the effects of geographic diversification on risk is more limited. Relying on resource-based theory to frame our arguments, we argue that despite some similarities, the two types of diversification have differing effects on firm risk. We first establish the risk reducing effects for product diversification. We then integrate the unique aspects of geographic diversification that serve as a boundary condition to the RBV perspective, arguing for the risk increasing effects of geographic diversification. Finally, since many firms pursue both forms of diversification simultaneously, we explore the joint effects of both product and geographic diversification. We test our hypotheses in a longitudinal model on a sample of S&P 500 firms. Our findings suggest that total product diversification, as well as related diversification reduce risk, while total geographic diversification increases risk. Furthermore, our data provide evidence of a complex combination of joint effects of these two forms of diversification. These findings offer a more complete understanding of the risk effects of corporate diversification.     

Methodological challenges of evaluating the impact of the Global Environment Facility's biodiversity program

In this paper, we explore some of the methodological challenges that evaluators face in assessing the impacts of complex intervention strategies. We illustrate these challenges, using the specific example of an impact evaluation of one of the six focal areas of the Global Environment Facility; its biodiversity program. The discussion is structured around the concepts of attribution and aggregation, offering the reader a framework for reflection. Subsequently, the paper discusses how theory-based evaluation can provide a basis for addressing the attribution and aggregation challenges presented.     

Simultaneous inference for functional data in sports biomechanics

AStA Advances in Statistical Analysis - The recent sports science literature conveys a growing interest in robust statistical methods to analyze smooth, regularly-sampled functional data. This...     

Household Structure and Short‐Run Economic Change in Nicaragua

During the economic crises Nicaragua suffered between 2000 and 2002, a conditional cash transfer program targeting poor households began operating. Using panel data on 1,397 households from the program's experimentally designed evaluation, we examined the impact of the program on household structure. Our findings suggest that the program enabled households to avoid reagglomeration during the economic crises, with households in control communities growing more than treated households. These changes were driven primarily by shifts in residence of relatively young men and women with close kinship ties to the household head. In contrast, households that received transfers continued to send off young adult members, suggesting that the program provided resources to overcome the short‐term economic pressures on household structure.     

“Let's Call Ourselves the Super Elite”: Using the Collective Behavior Tradition to Analyze Trump's America

The mid‐twentieth century “collective behavior” school asserted that (1) collective behavior—the actions of crowds, movements, and other gatherings—had distinct dynamics; (2) such action was often “nonrational,” or not governed by cost‐benefit calculation; and (3) collective behavior could pose a threat to liberal democracy because of these features. While this tradition fell out of scholarly favor, the 2016 election has given us empirical reasons to revisit some elements of collective behavior approaches. We argue for three key orienting concerns, drawn from this tradition, to understand the current political era. First is a focus on authoritarianism and populism, particularly among those who feel disaffected and isolated from political institutions, pared of psychologistic determinism and geared more sensitively to their manifestations as a political style. Second is a focus on racialized resentment, strain, and perceptions of status decline, especially in how such feelings are activated when people are confronted with disruptions to their lives. Third is an analysis of “emergent norms” and the extent to which political actors produce normative understandings of contextually appropriate action that are distinct from traditional political behavior. We elaborate on these themes, apply them to examples from current politics, and suggest ways to incorporate them into contemporary sociological research.     

TIME‐USE AND ACADEMIC PEER EFFECTS IN COLLEGE

This paper examines academic peer effects in college. Unique new data from the Berea Panel Study allow us to focus on a mechanism wherein a student's peers affect her achievement by changing her study effort. Although the potential relevance of this mechanism has been recognized, data limitations have made it difficult to provide direct evidence about its importance. We find that a student's freshman grade point average is affected by the amount her peers studied in high school, suggesting the importance of this mechanism. Using time diary information, we confirm that college study time is actually being affected. (JEL I20, F21, J01)     

Religion and progressive politics in the United States

In recent decades, scholars interested in the role of religion in American public life have largely focused on the Christian Right or the role of religion in civic life. Compared to these extensive literatures, relatively little attention has been paid to the role of religion in liberal/progressive politics. Progressive religious voices are more widespread and more racially, socioeconomically, and religiously diverse than is typically recognized. Moreover, while these actors seek influence within the most visible political realms of elections and policymaking, they also focus on shaping the cultural identities, narratives, and discourses that undergird democratic life. This article offers a framework through which to conceptualize the progressive religious field of action and reviews the growing body of research on the individuals and organizations that comprise this field. It begins by examining the prevalence of progressive religious views and activities among the general public; reviews research on three different types of progressive religious political organizations (social movements, national advocacy organizations, and faith‐based community organizations) as well as religious congregations' efforts to spur members to progressive political consciousness and mobilization; and evaluates the place of progressive religion in American political culture. Finally, it points to fruitful areas for future research.     

Hydrology of the Brooklyn Grange,an urban rooftop farm

Intensive agriculture is an emerging theme of green roof technology. Production of affordable, nutritious vegetables for local consumption and stormwater management are among the ecosystem services emphasized in studies of rooftop farming. However, intensive vegetable production requires irrigation, which can reduce stormwater retention, and there is little empirical data from full-scale operational rooftop farms. In this paper, we report the hydrologic performance of the Brooklyn Grange Navy Yard Farm, a 0.61-ha rooftop farm atop an 11-story building in New York City USA. We monitored soil water content, precipitation, irrigation, drainage, and crop yields to provide water balance and water use efficiency. We found cumulative discharge exceeded precipitation by 11% during the entire study period, hence the farm was a net source of water in the urban hydrologic cycle. Depending on crop types, water use efficiency at the Grange was lower than in-ground agriculture in dry regions with high irrigation demands. For the Brooklyn Grange to integrate stormwater management and water-efficient crop production, it will be important to increase soil water storage, to reduce irrigation demands and drainage loss of water while maintaining average soil moisture levels in the range of readily available water between 10 and 100 kPa of soil water tension.     

Prevention of family maltreatment in the U.S. Air Force: A systematic review of research on active-duty military personnel

ABSTRACT

Systematic review procedures are used to empirically evaluate the “implicit” logic model that guides the Air Force Family Advocacy Program’s secondary prevention efforts of family maltreatment among active-duty Air Force members. Searches of seven electronic databases and manual searches of 10 journals yielded 586 peer-reviewed articles published in 2000 or later. This review synthesizes the findings of 23 quantitative studies meeting inclusion criteria, including the prediction of some form of family maltreatment among U.S. active-duty military members. Based on review results, we identify critical success variables that function as family protective factors to decrease the likelihood of family maltreatment. These modifiable variables include formal supports, such as ecosystem supports from installation and unit leaders; informal supports, such as the social support of fellow service members and their families; and safe, stable, and nurturing family processes. The results generally align with the implicit logic model but suggest the model should be extended to include intrapersonal vulnerabilities and assets as well as contextual risks and assets. In addition to informing secondary prevention efforts in the Air Force, this novel use of systematic review procedures offers a strategy for evaluating logic models in other areas of prevention research, practice, or policy.     

Assessment of Integration of Disability Content into Social Work Education

ABSTRACT

Three hundred members of the Council on Social Work Education (CSWE) responded to a survey regarding the inclusion of disability content in social work courses and supports needed to increase disability content. Although respondents generally agreed that disability content is important in social work education, its inclusion is inconsistent, with most frequent inclusion in courses on diversity and least frequent inclusion in courses on research. Respondents identified barriers to increasing disability content, including lack of resources for teaching, lack of relevant faculty expertise, and an overcrowded curriculum. Strategies and resources for infusing disability content into social work education are discussed.