略论地质资源旅游资源化

本文从自然科学与人文社会科学相结合的视角 ,对地质资源旅游资源化的有关概念进行了区分和界定 ;提出了衡量地质资源旅游资源化的双重标准和相应条件 ;指出地质资源旅游资源化对地质资源价值增值 ,旅游资源与旅游环境的形成发展与保护以及旅游业可持续发展的积极作用。     

股市个人投资者的潜在类型分析

通过北京市30 个证券营业部对1 117 名股市个人投资者进行问卷调查, 研究发现: 总体 上, 投资者在选择股票时主要关注大盘走势和庄股动向, 同时也考虑产业政策、个股技术指标、 上市公司的经营状况等信息; 根据股市个人投资者选择股票时的12 种可能影响因素, 文中把 股市个人投资者聚类成为分析型、从众型和综合型3 种潜在类型; 根据对个人投资者聚类的结 果建立了投资者潜在类型的判别方程; 不同类型的投资者在教育水平特征、股龄特征以及跟庄 行为上存在显著的差异.     

组织职业生涯管理及效果的实证研究

通过开放式问卷调查和访谈, 结合国外的职业生涯管理的做法, 编制了适合我国国情的 组织职业生涯管理问卷, 将问卷在广州、武汉、十堰、襄樊等地的12 家国有企业、民营企业、股 份制企业的管理者、技术人员中进行了调查, 获得了410 份有效问卷. 分析结果表明: 我国组织职业生涯管理的结构主要体现在4 个维度: 即晋升公平、注重培训、组织自我认识的活动、职业发展信息的沟通; 而且这4 个维度对组织承诺、工作卷入度、职业满意度、工作绩效等产生积极的影响.     

Case-deletion Influence Measures for the Data from Multivariate t Distributions

For the data from multivariate t distributions, it is very hard to make an influence analysis based on the probability density function since its expression is intractable. In this paper, we present a technique for influence analysis based on the mixture distribution and EM algorithm. In fact, the multivariate t distribution can be considered as a particular Gaussian mixture by introducing the weights from the Gamma distribution. We treat the weights as the missing data and develop the influence analysis for the data from multivariate t distributions based on the conditional expectation of the complete-data log-likelihood function in the EM algorithm. Several case-deletion measures are proposed for detecting influential observations from multivariate t distributions. Two numerical examples are given to illustrate our methodology.     

Restructuring for import competition from developing countries,II: The case of the Federal Republic of Germany

Assistance legislation in Germany is not viewed as being effective because imports seem to be an interior source of displacement compared to productivity change and are not therefore the prime cause of adjustment difficulties. Moreover, programs aimed at specific individual industries do not seem warranted, as they operate to delay necessary restructuring, can easily turn into disguised or open protection, discriminate against the rest of the economy, and provoke retaliatory measures abroad.     

民族化健身运动处方教学模式的试验研究

设计了民族化健身运动处方的教学模式 ,通过对大学生三年的试验研究 ,证明了该教学模式对提高学生的心肺系统功能具有显著的效果     

当前中国农业现代化问题的研究态势

当前,随着中国国际与国内条件的重大变化,关于中国农业现代化问题再次引起了理论界的广泛关注.其总体的研究态势表现为过程论、技术论、生产方式论与综合论成为农业现代化内涵的几大基点,由此延伸对相应实现条件与规律的探寻;而对中国农业现代化现状的判断,虽然利弊权衡有所侧重,但却引发了反差较大的思路与对策,到底是制度优先、技术优先,还是全面发展,似乎都有自身的理性.     

Psychophysical laws in risk theory

In this article specific hypotheses on the shape of a rational agent's risk preference function are derived from psychophysical laws. Weber's law is used to establish the hypothesis of constant relative risk aversion for a myopic expected-utility maximizer. Weber's law. Fechner's law and a modified version of Koopmans' preference functional are shown to generate a family of multiperiod preference functionals which are either of an additive logarithmic or a multiplicative Cobb-DougIas type. This family has very appealing implications in a world of stochastic constant returns to scale. For the actual decision the multiperiod optimizer exhibits constant relative risk aversion as does the myopic optimizer. However, with the passage of time. the degree of this risk aversion, in general, moves towards unity. Moreover, it is worth noting that the agent neither has to make the consumption decision simultaneously with the selection of an optimal risk project nor needs any information about the future except his or her own preferences.     

Counseling models and their impact on how therapists handle values issues

Counseling is not a value free enterprise. Therapeutic models are value laden. Counselors and clients are both emotionally invested in right living issues. Since no therapy is value free, clients face the dilemma of finding a therapist with values similar to their own or having their values challenged. Therapists face the ethical issue of clarifying their own values and determining how to make them known.     

Trimmed Mean Isotonic Regression

The trimmed mean is well‐known in literature for being more robust and for having better efficiency than the sample mean when data is generated from heavy‐tailed distributions. In this article, the trimmed mean in the isotonic regression setup is proposed, and the asymptotic as well as the robustness properties of the estimator are studied. The usefulness of the proposed estimator is illustrated using different real and simulated data. Further, the performance of the estimator is compared with that of the mean and the median isotonic regression estimators.