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952.
Poduri S.R.S. Rao 《统计学通讯:理论与方法》2013,42(15):1659-1669
The MINQUE and its modifications are considered for estimating the variances of the balanced one-way random effects model. The effects of the a priori values on the estimators of the variances are examined in detail. The Mean Square Errors of the estimators are compared for variations in the prior values of the unknown variances. 相似文献
953.
Three separate issues concerning the relation between age and satisfaction with sex life are addressed in this article. The first issue was concerned with the age generalizability of the factor structure produced by responses to the Satisfaction with Sex Life Scale (SWSLS). The second issue was to examine whether there were differences in the satisfaction with sex life according to certain background characteristics, namely age. Finally, the relationship between scores on the SWSLS with those on other relational constructs was explored. Data collection involved completion of a questionnaire. The sample consisted of 1,144 participants. The mean ages of the sample were 38.99 years in (SD = 16.91); ages ranged from 20 to 80. The data indicated that the factor structure of responses to the SWSLS were highly similar through adult life. Religious involvement, marital status, and love status influenced satisfaction with sex life. Expected correlations with measures of other relationship constructs were found. The strongest predictor of satisfaction with sex live across the adult life span was love satisfaction. Suggestions concerning the use of the SWSLS for research and clinical purposes are offered. 相似文献
954.
Francisco Gutiérrez Sanín Diana Buitrago Andrea González 《Social indicators research》2013,110(1):305-326
Political indicators are widely used in academic writing and decision making, but remain controversial. This paper discusses the problems related to the aggregation functions they use. Almost always, political indicators are aggregated by weighted averages or summations. The use of such functions is based on untenable assumptions (existence of homogeneous substitution rates, total compensation, and strict monotonicity). We show through concrete examples how these hidden assumptions are likely to produce results that are basically an artifact of ad hoc decisions, which additionally contradict very fundamental notions common to all credible political theories. We suggest, also through example, that some—necessarily partial—solutions are possible. 相似文献
955.
956.
In this paper we analyze the explicit representation of fixed agenda social choice correspondences under different rationality
assumptions (independence, Pareto optimality, etc.). It is well known that, under some of these assumptions, the existence
of dictators, oligarchies or individuals with veto power can be proven ([6] and [10]); but only a partial characterization
of the social choice set is obtained. We establish a relationship between the social choice set and the individuals' maximal
sets, which explicitly describes a fixed agenda social choice correspondence that satisfies these rationality assumptions.
Received: 30 December 1997/Accepted: 20 December 1999 相似文献
957.
Abstract In 1980, thirty‐five years after the end of World War II, the long‐term impact of war‐trauma on individuals’ lives led to concern about Post‐Traumatic Stress Disorder. While the focus here is not on “disorders,” it is on interactive patterns of “defensive” caretaking behaviors which contribute to intergenerational transmission of anxiety, silence and losses related to the Holocaust. In this long‐term group, defensive caretaking patterns are conceptualized as second‐generation behaviors which focus on parental needs thereby avoiding addressing second‐generation vulnerabilities. Relevant concepts of Sullivan, Winnicott, Bion and Fairbairn are applied. In an innovative trauma group design, defensive caretaking patterns are illustrated through clinical examples and interventions by the therapist as a “validating object” work to mitigate transmission to still the next generation. 相似文献
958.
Gerald Schamess M.S.S. 《Smith College studies in social work》2013,83(2):153-168
Abstract This paper, the first of a two‐part series to be published in sequential issues of the journal, reviews the recent intervention literature about single teenage mothers who are psychologically dysfunctional. It emphasizes the interplay of social, economic and developmental factors as stressors in the lives of these young women and explores some of the issues that need to be addressed in constructing effective therapeutic programs. The second paper describes an intervention program consisting of long‐term developmentally‐oriented groups for single teenage mothers and their children. 相似文献
959.
PRICE MATCHING AND THE DOMINO EFFECT IN A RETAIL GASOLINE MARKET 总被引:1,自引:0,他引:1
Using gasoline station price data collected eight times per day for 103 d for 27 stations in Guelph, Ontario, it is found that, consistent with an informal theory of competitive gasoline pricing, stations set prices to match a small number of other stations. However, these matched stations are not necessarily the closest. While retailers frequently respond to price changes within 2 h, many take considerably longer. Finally, while price decreases do ripple across the market like falling dominos, increases propagate across the city based more on geographic location and source of price control than on proximity to leaders of these increases. ( JEL L13, L40, L81) 相似文献
960.
We propose a hidden Markov model for longitudinal count data where sources of unobserved heterogeneity arise, making data
overdispersed. The observed process, conditionally on the hidden states, is assumed to follow an inhomogeneous Poisson kernel,
where the unobserved heterogeneity is modeled in a generalized linear model (GLM) framework by adding individual-specific
random effects in the link function.
Due to the complexity of the likelihood within the GLM framework, model parameters may be estimated by numerical maximization
of the log-likelihood function or by simulation methods; we propose a more flexible approach based on the Expectation Maximization
(EM) algorithm. Parameter estimation is carried out using a non-parametric maximum likelihood (NPML) approach in a finite
mixture context. Simulation results and two empirical examples are provided. 相似文献