TEACHING THE PRODUCTION/OPERATIONS MANAGEMENT CORE COURSE: INTEGRATING LOGISTICS PLANNING ACTIVITIES

This paper discusses the benefits of restructuring the introductory undergraduate production and operations management (pom) course to improve its pedagogical effectiveness and to better convey the importance of integrating logistics planning activities. The introduction of a dynamic integrative semester-long case study which involves students in applying pom concepts and tools through a simulation game is reported.     

Adolescents' Plans for Family Formation: Is Parental Socialization Important?

This study examines adolescents' plans for family formation (marriage and parenthood) and the congruence between their plans and their mothers' expectations and behaviors within these spheres. Using log‐linear and ordinary least squares (OLS) regression models to analyze data from the National Survey of Children (N= 724 ), this study addresses mechanisms of family socialization (e.g., modeling and defining influence) informed by social learning and symbolic interactionist theories. It also reveals whether and how these mechanisms vary according to gender. Results reveal that family factors best predict children's plans, although peer groups also may be important. In addition, defining influence is stronger than modeling influence.     

The dynamics of hapū research relationships

Abstract

The Whakaki Lake Trust has a long history of being an active kaitiaki of Whakaki Lake and has developed a hapū-based restoration and enhancement programme at the Lake property. Part of this programme has involved working with a range of external agencies and researchers. Research relationships have become an important part of the restoration process to build the capability and capacity of hapū to execute activities associated with restoration. In addition, relationships have provided an opportunity to strengthen and expand the knowledge base that hapū can draw upon to inform ecological restoration and resource management decisions. Some of these relationships have been adversarial and a source of much frustration. As a consequence the Trust has developed very clear expectations and policy around working with others. My experience of developing a doctoral research project with Whakaki Lake Trust is used here to discuss hapū expectations of research and resultant academic dilemmas.     

Penalized Maximum Likelihood Estimator for Normal Mixtures

The estimation of the parameters of a mixture of Gaussian densities is considered, within the framework of maximum likelihood. Due to unboundedness of the likelihood function, the maximum likelihood estimator fails to exist. We adopt a solution to likelihood function degeneracy which consists in penalizing the likelihood function. The resulting penalized likelihood function is then bounded over the parameter space and the existence of the penalized maximum likelihood estimator is granted. As original contribution we provide asymptotic properties, and in particular a consistency proof, for the penalized maximum likelihood estimator. Numerical examples are provided in the finite data case, showing the performances of the penalized estimator compared to the standard one.     

中国古代慈善事业的发展特点

中国古代慈善事业在漫长的历史发展过程中不但逐渐形成了庞杂而丰富的思想体系,而且其慈善主体也实现了从最初单纯的国家慈善到以国家慈善为主、宗族慈善和宗教慈善为重要补充的多元化发展过程。另外,中国古代慈善事业的发展轨迹还明显具备与整个中国古代社会兴衰相表里的重要特点。     

A feminist analysis of self-help bestsellers for improving relationships: a decade review

Self-help literature is pervasive and influential in the United States. A critical analysis of self-help books would help therapists to determine their utility for the therapeutic process and assist them in making reading recommendations to clients. In this study, a content analysis was conducted of the top 11 relationship self-help books on the New York Times Bestseller List over a period of 10 years (1988-1998) to determine the degree to which these books support a feminist approach to therapy. This study yielded three major findings. First, the number of feminist books, the number of nonfeminist books, and those falling in the middle across four components of feminist family therapy are about equal. However, the second major finding was that the top-selling books are more likely to be nonfeminist than feminist. The third finding is that most best-selling self-help books appear to have become less compatible with a feminist approach to relationships over time. This analysis encourages therapists to think critically about these best-selling books; it will also allow therapists to consider this methodology as a model for critically analyzing other books that they recommend to clients or use in their own professional development.     

Estimating the Effects of Residential Mobility: A Methodological Note

This article reviews the methodological challenges of estimating a causal association between mobility and children's cognitive, social, emotional, and physical development. Utilizing a comprehensive set of empirical articles published in the past 25 years that employ quantitative methods, it describes the limitations of previous studies and the innovative ways that researchers have attempted to deal with them. The concept of mobility is inconsistently operationalized along four dimensions: school versus residential, distance, timing, and frequency. Imprecise operationalization conflates different forms of mobility, which have differential effects on development. Attempts to estimate a causal association between mobility and development suffer from three sources of bias: selection, contextual shifts, and contemporaneous instigating events. (a) Methods that account for unobserved differences between mobile and nonmobile children have consistently shown smaller or even positive effects of mobility. (b) Moving can have a positive or negative effect on children's ecological contexts in ways that are systematically correlated with child development. (c) Moves are frequently catalyzed by changes in family structure and employment. The article concludes with recommendations for future research. Researchers should continue to engage fixed- and random-effect, matching, and instrumental variable techniques, each of which makes the question of causality explicit.     

Non-parametric Quantile Regression with Censored Data

Abstract.  Censored regression models have received a great deal of attention in both the theoretical and applied statistics literature. Here, we consider a model in which the response variable is censored but not the covariates. We propose a new estimator of the conditional quantiles based on the local linear method, and give an algorithm for its numerical implementation. We study its asymptotic properties and evaluate its performance on simulated data sets.     

The evolution of fetal protection policies

This article examines the evolution of fetal protection policies (FPPs) by detailing their historical legacy and a range of contemporary social forces that have contributed to their maintenance. It is based on a case study of the 1977 U.S. Department of Labor, Occupational Safety and Health Administration (OSHA) hearings to revise the industrial lead standard, the 1991 U.S. Supreme Court decision that such policies are unconstitutional (United Auto Workers v. Johnson Controls, 1991), and the case law preceding that decision. A primary issue is the notion that women and fetuses are disproportionately susceptible to lead. This study reveals the ways in which this belief is framed, disputed, and appropriated by various parties to the fetal protection policy debate. Implications of this case study for family health policy are also discussed. Her research interests include work-family linkages, intergenerational relations, and caregiving across the life course. She received her Ph.D. from The University of Pennsylvania. She gratefully acknowledges Tadlock Cowan and Beth Anne Shelton for helpful comments and Marc Hallee for research assistance.