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101.
In a world of uncertainty in which a worker's performance is variable over time and average performance is unknown when hiring, how will employers determine compensation? We develop a monitoring and signaling model where information is symmetric and parties are risk neutral. Monitoring costs increase with inconsistency, lowering pay for inconsistent workers. If discrimination exists, minority workers will be rewarded less than majority workers for improving consistency. Testing these and other predictions using National Basketball Association data, we find that consistent professional basketball players are paid more, but, in contrast to previous studies, there is no evidence of discrimination. (JEL J3, J7) 相似文献
102.
Charles S. Levy 《Journal of Social Work Education》2013,49(2):25-30
A learning paradigm for teaching social work research is offered as an alternative to the consumership models, the researcher as technician models, and the integration of research into other curriculum areas. The model presented adheres closely to the principle of knowledge-guided practice and ties knowledge about knowledge to the practice demands of the profession. The result is a highly integrative experience for the student. The last course has become a model for an integrative seminar. 相似文献
103.
Charles S. Levy 《Journal of Social Work Education》2013,49(1):34-42
Values may be conceived along three basic dimensions which would account for the major value orientations shared by social workers and related to all aspects of their professional practice. These are: preferred conceptions of people, preferred outcomes for people, and preferred instrumentalities for dealing with people. Distinguished from “knowledge,” and adequately refined, these categories of values might constitute a guide for planning and action in social work practice and education. The predictability of professional behavior which might then result would also define the expectations of clients and society with respect to what the social work profession stands for and what it does. 相似文献
104.
Sandra Minor Bulmer PhD Syed Irfan MPH Raymond Mugno PhD Barbara Barton RN MPH Louise Ackerman MPH 《Journal of American college health : J of ACH》2013,61(4):383-390
Abstract Objective: This study examined alcohol consumption patterns and trends at a public university in the Northeast from 2002 to 2008. Participants: Stratified random sampling was used to select undergraduate students enrolled in courses during spring semesters in 2002, 2004, 2006, and 2008. Methods: Data were collected during regularly scheduled classes for 4 measures of alcohol consumption and 5 demographic categories using the Core Alcohol and Drug Survey. Results: Four groups showed significant increases in both frequency and volume of alcohol consumption—students who were female, over 21 years of age or over, living off-campus, or performing well academically. There were no decreasing trends for any demographic group. These results differ from national college health surveys, which have shown alcohol use remaining steady during this period. Conclusions: Campus-specific trend data can provide unique perspectives and guide programming efforts. These trends suggest a need for new intervention strategies on this campus. 相似文献
105.
106.
Kobi Abayomi rew Gelman Marc Levy 《Journal of the Royal Statistical Society. Series C, Applied statistics》2008,57(3):273-291
Summary. We consider three sorts of diagnostics for random imputations: displays of the completed data, which are intended to reveal unusual patterns that might suggest problems with the imputations, comparisons of the distributions of observed and imputed data values and checks of the fit of observed data to the model that is used to create the imputations. We formulate these methods in terms of sequential regression multivariate imputation, which is an iterative procedure in which the missing values of each variable are randomly imputed conditionally on all the other variables in the completed data matrix. We also consider a recalibration procedure for sequential regression imputations. We apply these methods to the 2002 environmental sustainability index, which is a linear aggregation of 64 environmental variables on 142 countries. 相似文献
107.
Michael Levy Ph.D. Marilyn Feinberg M.A. 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》1991,7(1):41-53
In this paper, some possible relationships between psychopathology and pathological gambling are delineated. The assessment and stabilization of such patients, including psychotherapeutic and pharmacologic strategies, are discussed. Guidelines for treating patients manifesting both a psychiatric illness and a gambling problem are suggested. 相似文献
108.
D T Levy 《Risk analysis》1988,8(4):569-574
This study examines the effect of state driving age, learning permit, driver's education, and curfew laws on 15-17-year-old driver fatality rates. A multivariate regression model is estimated for 47 states and nine years. The minimum legal driving age and curfew laws are found to be important determinants of fatalities. Driver's education and learning permits have smaller effects. The relationship between rates of licensure and driving age, education, and curfew laws is also examined. In each case, a more restrictive policy is found to reduce licensure of 15-17 year olds. The results suggest that the imposition of curfew laws and higher minimum driving ages are particularly effective traffic safety policies. 相似文献
109.
Emanuel Levy 《The Sociological quarterly》1990,31(2):203-224
This study examines artistic innovations from the point of view of age structure and age stratification. Drawing on Mannheim's theory of generations, it describes and analyzes the history of the Hebrew theater, from its beginnings in 1917 to 1977, in terms of four theaters that were expressions of generation units. The study suggests that the crucial variable in explaining changes in artistic ideologies, contents, and styles of the Hebrew theater is Mannheim's concept of generation unit. The emergence and evolution of these generational theaters are explained in relation to changes in the demographic, political, and social structures of Israeli society during the historical era under consideration. Special emphasis is placed on the role of youth in originating artistic innovations and on the problems of maintaining and institutionalizing innovations. 相似文献
110.
Significant differences have been found to exist among individuals with different drinking patterns with respect to past life satisfactions — five years ago (p < 0.001) and present satisfaction (p < 0.005); however, no significant difference in future aspirations could be identified. In addition, using an ‘unrealistic hopefulness’ coefficient, the authors found higher future aspirations levels than would be normally expected. Those individuals who drink more now than five years ago consistently show the lowest mean satisfaction scores on the Cantril Self-Anchoring Striving Scale. Those whose drinking pattern remained stable over time consistently perceived themselves highest on the scale both five years ago and now, regardless of present drinking pattern. At the time this article was written Drs Levy and Bell and Ms Lin were with the University of Louisville, Department of Psychiatry & Behavioral Sciences. Dr Levy is now with the Sepulveda VA Hospital, LA, California. Reprints may be obtained through Dr Levy. 相似文献