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991.
Larry W. Taylor 《Econometric Reviews》1997,16(1):109-118
The predictor that minimizes mean-squared prediction error is used to derive a goodness-of-fit measure that offers an asymptotically valid model selection criterion for a wide variety of regression models. In particular, a new goodness-of-fit criterion (cr2) is proposed for censored or otherwise limited dependent variables. The new goodness-of-fit measure is then applied to the analysis of duration. 相似文献
992.
The Analysis of Verbal Behavior - This paper analyzes autism as a contingency-shaped disorder of verbal behavior. Contingencies of reinforcement in effect during the first to third year of a... 相似文献
993.
Michael R. Czinkota Gary A. Knight Peter W. Liesch John Steen 《Journal of International Management》2005,11(4):581
Terrorism poses both direct and indirect threats to the operations of the firm. It represents a market imperfection that increases transaction costs and creates barriers to the free flow of goods, affecting potential gains that would occur in the presence of unhindered exchange. Terrorism reflects the risk or actual encounter of violent acts, whose goal is to engender fear, coercion, or intimidation. We investigate terrorism and its association with marketing strategy and operations. Key concepts on terrorism are reviewed and a collection of propositions is offered. We highlight the pivotal roles of sourcing, production, distribution, pricing, communications, and general business strategy as functions influenced by, or capable of influencing, terrorism. Lastly, we offer managerial implications, as well as directions and guidelines for future research. 相似文献
994.
Self-perception of aging and health among older adults in Korea 总被引:1,自引:0,他引:1
The way that each individual perceives his or her own aging and health may be a key indicator of adaptation and well-being in old age. This study explored the determinants of self-perception of aging and health using 291 community-dwelling older adults in Korea (mean AGE=69.9). Older individuals with lower levels of education and economic status and various types of health problems (more chronic conditions, greater disability, poorer vision, and greater numbers of sick days) were found to have more negative self-perception of aging and health. In addition, a significant role of psychological factors was observed. For self-perception of health, sense of mastery was found to be a significant factor, and for self-perception of aging, neuroticism was observed to be significant along with sense of mastery. The mediating role of self-perception of health was supported that positive perception of health intervened the adverse effects of health problems on self-perception of aging. The findings demonstrate the important roles of psychological resources and subjective perceptions and suggest a need to consider them when planning interventions. 相似文献
995.
Thomas Packard D.S.W. Loring Jones D.S.W. Kristen Nahrstedt M.A. 《Child and Adolescent Social Work Journal》2006,23(1):86-106
A team building activity, the image exchange, was helpful to interdisciplinary teams in clarifying perceptions and opinions of participants about the roles of each discipline (child welfare, domestic violence, mental health, and substance abuse workers) at a five-day interdisciplinary training workshop. Discussion of team members’ perceptions and views provided opportunities to develop insights about misperceptions. Training in team development and role clarification provided a foundation for the development of effective interdisciplinary collaboration, which may improve interdisciplinary practice.Dr. Packard is an Associate Professor and Dr. Jones is a Professor in the School of Social Work at SDSU. At the time of writing, Ms. Nahrstedt was a Research Assistant in the School of Social Work at SDSU. This project was funded by a grant from the U.S. Department of Health and Human Services, Administration for Children, Youth, and Families. 相似文献
996.
Andrew W. Martin 《Journal of Labor Research》2006,27(2):163-185
In the 1990s the labor movement underwent a major transformation in an attempt to confront the challenges facing organized
labor, most notably a precipitous membership decline— in the private sector, membership is currently at a post-Great Depression
low. Despite the enthusiastic response among unionists and scholars alike to this revitalization project, as Zald and Berger
(1978) note, change within formal organizations is often a contentious process, as competing interests struggle for control.
The current labor movement is no exception: Significant conflict surrounds the issue of new organizing activities. While this
period is certainly interesting for the level of open debate occurring over the future of the movement, it is not unique as
a time of heightened tensions among unionists. Herein I describe debates, both historical and present, over organizing goals
and tactics. In order to draw parallels between the past and present, I offer a theoretical account of why organizing is such
a controversial topic. Initial support for these explanations, drawn from quotes from unionists and observers of the movement
alike, indicates that the current turmoil in the labor movement is similar to that which occurred in other important periods
and that the consequences of the decisions made today regarding organizing can have significant ramifications for the movement’s
future. 相似文献
997.
998.
We examine how no-fault divorce law affects the age at first marriage, when everyone has a different value of marriage. The heterogeneity of individual values implies an unambiguous negative effect on the variance of marriage age. We test this hypothesis with marriage records from 1970 to 1995. Controlling for state-level heterogeneity and for time trends, the standard deviation of the log age at first marriage drops by approximately 5% with the introduction of no-fault divorce. We find that the mean age at first marriage increases slightly, suggesting that the mean person is slightly worse off with no-fault divorce. (JEL K0 , D1 ) 相似文献
999.
现代逻辑的价值和意义,在于其在理论上的应用。对于纯数学的基础和结构来说,现代逻辑是一种非常有用的工具,包括哥德尔不完全性定理等,都利用了现代逻辑的技术和成果。某些现代逻辑技术已经广泛应用到了工程学之中,例如,计算机工程就基于现代逻辑的高级成果。反过来,这些应用又刺激了逻辑理论本身取得更多的进步。 相似文献
1000.
In testing for bivariate symmetry against arbitrary alternatives the well‐known test developed by Bowker in 1948 is shown to be a score test, and to have useful components. These components are asymptotically independent and asymptotically have the standard normal distribution. Moreover they assess particular pairs of cells for symmetry. These components can also be used in a data analytic manner to complement a test for bivariate symmetry against ordered alternatives. 相似文献