From ‘sustainable rural communities’ to ‘social sustainability': giving voice to diversity in Mangakahia Valley, New Zealand

Despite widespread interest in the notion of sustainability, little progress has been made towards an understanding of its social dimensions. Nonetheless, the concept of ‘sustainable rural communities’ is embedded in popular, policy and academic discourses, where the needs of ‘rural communities’ are usually equated with those of farm families. Our ethnographic research in Northland, New Zealand illustrates the diverse interests to be found within ‘rural communities'. Interviews and participant observation were undertaken between August 1995 and July 1996 in the Mangakahia Valley. The increasing divergence in the ethnic, class and occupational makeup of the population has brought with it complexities in terms of what can be said to contribute to ‘sustainable rural communities'. We suggest that ‘sustainable rural communities’ be treated as a folk category, and instead, social science discourse should resort to the broader concept of social sustainability, which will have a locally defined content, not a universal definition, but will include elements of livelihood, social participation, justice and equity.     

International alliance formation and stock market responses:: Industry globalization as an environmental contingency

This study examines the effects of the degree of industry globalization on international alliance formation in terms of the type of alliance chosen by partner firms and stock market responses to the chosen type of alliance. Using a sample of 244 international alliances formed between U.S. and non-U.S. firms for the 1992–97 period, we find that nonjoint venture (joint venture) alliances take place relatively more frequently in global (multidomestic) industries than in multidomestic (global) industries. We also find that in global industries, abnormal returns to nonjoint venture partners are relatively greater than those to joint venture partners, whereas in multidomestic industries, abnormal returns to nonjoint venture partners are relatively smaller, though insignificant, than those to joint venture partners. Our findings suggest that the degree of industry globalization plays an important role in explaining which type of international alliance is likely to be chosen by partner firms when entering an alliance and how stock markets tend to respond to the chosen type of alliance.     

Bridging the territorial divide: immigrants’ cross-border communication and the spatial dynamics of their kin networks

The transnational perspective emphasises the persistence of immigrants’ home country connections, yet existing research adds little to our understanding of the mechanisms by which cross-border ties are maintained. We use nationally representative data of immigrants in Spain to describe changes in their kin network and study how two characteristics, migration stage (whether kin already resided in Spain at the time of emigration and whether any kin remained in the birth country (BC) at the time of interview) and relationship-specific locations of kin (children, parents, spouse, siblings), influence the frequency of cross-border communication. We find an expansion in the total number of kin largely due to childbearing and marriage. The average fraction of migrants’ immediate kin in Spain shifts from 6% to 41%. The presence of at least one kin in the BC increases the frequency of cross-border communication, but with the exception of siblings, the presence of family already in Spain at the time of emigration does not. Siblings and parents were far more likely to retain a BC presence, but they were less likely than spouses or children to be contacted daily. While these ties are generally long-lasting, communication wanes as immigrant embeddedness in the receiving country grows.     

Laplace based approximate posterior inference for differential equation models

Ordinary differential equations are arguably the most popular and useful mathematical tool for describing physical and biological processes in the real world. Often, these physical and biological processes are observed with errors, in which case the most natural way to model such data is via regression where the mean function is defined by an ordinary differential equation believed to provide an understanding of the underlying process. These regression based dynamical models are called differential equation models. Parameter inference from differential equation models poses computational challenges mainly due to the fact that analytic solutions to most differential equations are not available. In this paper, we propose an approximation method for obtaining the posterior distribution of parameters in differential equation models. The approximation is done in two steps. In the first step, the solution of a differential equation is approximated by the general one-step method which is a class of numerical numerical methods for ordinary differential equations including the Euler and the Runge-Kutta procedures; in the second step, nuisance parameters are marginalized using Laplace approximation. The proposed Laplace approximated posterior gives a computationally fast alternative to the full Bayesian computational scheme (such as Makov Chain Monte Carlo) and produces more accurate and stable estimators than the popular smoothing methods (called collocation methods) based on frequentist procedures. For a theoretical support of the proposed method, we prove that the Laplace approximated posterior converges to the actual posterior under certain conditions and analyze the relation between the order of numerical error and its Laplace approximation. The proposed method is tested on simulated data sets and compared with the other existing methods.     

Trajectories of Community-Based Service Use: The Importance of Poverty and Living Arrangements

ABSTRACT

This study examined how older adults’ living arrangements and poverty status affected their use of in-home health, functional, and out-of-home services over time. Using eight waves of data from the Korea Welfare Panel Study, we employed a logistic mixed-effect model to analyze how poverty and living arrangements affect community-based service use. Living-alone older adults and elder-only couples were more likely than co-residing households to use services. Elder-only couples, when poor, were more likely to use in-home and out-of-home services over time. Understanding predictors of community-based service use over time enables researchers and policymakers to better understand the process of aging-in-place.     

Stressful and positive experiences of women who served in Vietnam

Experiences of women who served during the Vietnam War have been described in interviews/anecdotal reports but rarely in empirical literature. Potential positive (versus negative) aspects of service or its impact on well-being are seldom considered. We describe stressful and positive experiences reported by approximately 1,300 female military personnel, Red Cross workers, and others deployed to Vietnam. Prominent stressful (e.g., negative living/working conditions) and positive (e.g., interpersonal relationships) themes and differences based on trauma history, Vietnam experiences, and group membership are explored. We evaluate associations between themes and psychological well-being. Findings provide insight into experiences of this understudied group of women.     

Effects of crisis efficacy on intentions to follow directives during crisis

Self-efficacy has consistently been a useful predictor of behavioral intentions as a construct in many theories; yet, its role in audience adherence to instructing information during crisis is relatively unexplored. A national survey (N = 454) examines self-efficacy in public response to crisis directives and develops the concept of crisis efficacy as an important area for future research. In three crisis contexts (food-borne illness, weather emergency, and public health disease threat), crisis efficacy, along with several demographics, significantly predicted public response to instructing information. Crisis efficacy emerges as a construct with great potential to inform message design in crisis communication.     

Financial Risk Attitude and Behavior: Do Planners Help Increase Consistency?

This study is the first to evaluate the effect of sources of information on households’ consistency between their risk attitude when making savings and investment decisions and risk behavior displayed when they do save and invest. As the responsibility is being shifted to individuals to save for their own financial future, it is important that individuals and households save and invest in a manner that is consistent with their financial risk tolerance. Financial planners were found to provide significant value to households on the consistency of their financial risk attitude and behavior. The implications of this work are far-reaching in the financial planning arena.     

Long-range dependence analysis of Internet traffic

Long-range-dependent time series are endemic in the statistical analysis of Internet traffic. The Hurst parameter provides a good summary of important self-similar scaling properties. We compare a number of different Hurst parameter estimation methods and some important variations. This is done in the context of a wide range of simulated, laboratory-generated, and real data sets. Important differences between the methods are highlighted. Deep insights are revealed on how well the laboratory data mimic the real data. Non-stationarities, which are local in time, are seen to be central issues and lead to both conceptual and practical recommendations.     

Same-sex marriage laws and demand for mortgage credit

Marriage for same-sex couples was only permitted in a limited number of states prior to the U.S. Supreme Court’s 2015 decision in Obergefell v. Hodges. We exploit panel variation across states prior to the Supreme Court decision to investigate the effect of marriage laws on demand for mortgage credit. Identification relies on the fact that states permitted same-sex marriage at different points in time, often through court order whereby the outcome and timing of ruling was unknown. We estimate that states permitting same-sex marriage experienced a 6–16% increase in same-sex mortgage applications after the policy was implemented. Federal recognition of marriage is associated with a stronger effect than state same-sex marriage prior to the repeal of the Defense of Marriage Act, but the effect of state-recognized marriage is also stronger than anti-discrimination policies in housing. Our findings provide important insight not only to the housing choices of same-sex households but the impact of marriage on all households.