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41.
Sergiu Hart Andreu Mas‐Colell 《Econometrica : journal of the Econometric Society》2000,68(5):1127-1150
We propose a new and simple adaptive procedure for playing a game: ‘regret‐matching.’ In this procedure, players may depart from their current play with probabilities that are proportional to measures of regret for not having used other strategies in the past. It is shown that our adaptive procedure guarantees that, with probability one, the empirical distributions of play converge to the set of correlated equilibria of the game. 相似文献
42.
城市化进程中失地农民利益受损及其制度分析 总被引:2,自引:0,他引:2
拓宏伟 《延安大学学报(社会科学版)》2005,27(6):67-70
随着城市化进程的加快,大量农用土地被不断征用,失地农民的利益严重受损,主要表现有:征地补偿费过低;补偿标准不一,分配混乱;再就业安置困难等。造成这一现象的制度因素在于:现行土地征用制度存在很大缺陷;农民集体土地主体缺位;补偿机制及其标准与市场严重脱节等。因此,改变这一现状的对策应是:明确界定征地补偿费的获益主体;完善征地补偿分配条例;建立健全有关失地农民的社会保障制度等。 相似文献
43.
This study examines the effects of marital and nonmarital union transition on health. Utilizing Canadian longitudinal data, we find that exiting both marriage and cohabitation seems to have similar effects: Dissolving either union tends to be associated with a decrease in physical health, mental health, or both. With possible selection effects eliminated and protection effects held constant, we find that remaining in either type of union generally is associated with poorer health. We speculate that decreased union quality may account for this inverse relationship, and that protection effects may explain much of the reported health gains associated with union life. 相似文献
44.
A Conditional Autoregressive Gaussian Process for Irregularly Spaced Multivariate Data with Application to Modelling Large Sets of Binary Data 总被引:5,自引:0,他引:5
A Gaussian conditional autoregressive (CAR) formulation is presented that permits the modelling of the spatial dependence and the dependence between multivariate random variables at irregularly spaced sites so capturing some of the modelling advantages of the geostatistical approach. The model benefits not only from the explicit availability of the full conditionals but also from the computational simplicity of the precision matrix determinant calculation using a closed form expression involving the eigenvalues of a precision matrix submatrix. The introduction of covariates into the model adds little computational complexity to the analysis and thus the method can be straightforwardly extended to regression models. The model, because of its computational simplicity, is well suited to application involving the fully Bayesian analysis of large data sets involving multivariate measurements with a spatial ordering. An extension to spatio-temporal data is also considered. Here, we demonstrate use of the model in the analysis of bivariate binary data where the observed data is modelled as the sign of the hidden CAR process. A case study involving over 450 irregularly spaced sites and the presence or absence of each of two species of rain forest trees at each site is presented; Markov chain Monte Carlo (MCMC) methods are implemented to obtain posterior distributions of all unknowns. The MCMC method works well with simulated data and the tree biodiversity data set. 相似文献
45.
The Mental Health of the Childless Elderly 总被引:1,自引:0,他引:1
The substantial number of childless elderly in Canada and the United States raises important concerns about the nature of their family support, as well as their psychological well-being. Although the (mixed) effects of childlessness on the mental health of the elderly are well documented in the literature, little is known about the social distribution of psychological distress and depression within this population: how well the childless elderly live, the status of their mental health, and what factors affect their psychological well-being are all crucial questions that remain unanswered. This paper utilizes Pearlin et al.'s (1981) stress process model to examine psychological distress and depression among the childless elderly. Our empirical analysis uses a nationally representative sample of childless individuals aged 55 and over ( N = 2,311) from the 1996-1997 National Population Health Survey (NPHS), and generalized linear model (GLM) techniques. Generally, our results support the stress process model. We find that individual-level stressors exert a strong and consistently negative impact on psychological distress and depression. We also find significant buffering effects of (perceived) social support. 相似文献
46.
Bernice Z. Tucker Gordon Hart Howard A. Liddle 《Journal of marital and family therapy》1976,2(3):269-276
A group model of supervision of family therapy was implemented by a team of three supervisors with doctoral students in counseling psychology. It was believed that such an approach would provide students with more opportunity to work as therapists with families and to observe a greater variety of families, therapists, and therapeutic styles than in other models. Interchange in supervisory sessions focused on co-therapy issues, observation skills, family dynamics, differing therapeutic techniques and approaches, and planning and goal setting in therapy. This experience contributed to the professional and personal growth and development of students. 相似文献
47.
48.
Response to stress is determined in part by genetically-influenced regulation of the monoamine system. We examined the interaction of a stressor (receipt of public assistance) and a gene regulating the monoamine system (MAOA) in the prediction of change in adolescent depressive symptoms and body mass index (BMI). Participants were drawn from the National Longitudinal Study on Adolescent Health (AddHealth) genetically-informative subsample. We focused on males due to the fact that males only have one MAOA allele. Growth curve analyses were conducted to assess the association between public assistance, MAOA allele, and their interaction and the intercept and slope of depressive symptoms and BMI. The results indicated that among males, MAOA allele type interacted with receipt of public assistance in the prediction of rate of change in both depressive symptoms and BMI from early adolescence through early adulthood. Males with the short MAOA allele whose families received public assistance tended to experience increased growth in depressive symptoms and BMI. Implications of the findings for understanding the relations among stress, physiology, and development are discussed. 相似文献
49.
50.
To work at the state and local levels, the Job Training Partnership Act (JTPA) requires specific kinds of demographic data. Unemployment figures, poverty information, occupational supply and demand data, wage structure, and many other types of data are used in planning and operating JTPA programs, and in modifying the performance standards by which the programs are evaluated. The decennial census provides some key data and thus some significant types of information become less timely as the decade progresses. Furthermore, the framers of the Act had little or no knowledge of the forms in which data are collected and thus definitions given in the Act do not always agree with definitions used in the demographic data which are available. The policymakers for future government benefit programs could learn from this mistake: before writing legislation which is so heavily dependent on demographic data, they should ascertain what types of data are available or can be generated for use in the program. 相似文献