现代资本市场理论:发展、演变及最新发展趋势

以有效市场假说为核心的现代资本市场理论的产生使对金融问题的分析实现了从定性到定量的转变,但该理论是完美假设条件下标准化的理论,不能解释各种市场“异象”,从而使人们对其不断提出质疑,并导致金融理论史上的再次革命与资本市场理论的多极化发展。     

TWO-WAY CHANGE-POINT MODEL AND ITS APPLICATION

Exact null and alternative distributions of the two-way maximally selected x² for interaction between the ordered rows and columns are derived for each of the normal and Poisson models, respectively. The method is one of the multiple comparison procedures for ordered parameters and is useful for defining a block interaction or a two-way change-point model as a simple alternative to the two-way additive model. The construction of a confidence region for the two-way change-point is then described. An important application is found in a dose-response clinical trial with ordered categorical responses, where detecting the dose level which gives significantly higher responses than the lower doses can be formulated as a problem of detecting a change in the interaction effects.     

Projector operators in the multivariate Zyskind-Martin model

Summary Two quadratic formsS _H andS _E for a testable hypothesis and for an error in the multivariate Zyskind-Martin model with singular covariance matrix are expressed by means of projector operators. Thus the results for the multivariate standard model with identity covariance matrix given by Humak (1977) and Christensen (1987, 1991) are generalized for the case of Zyskind-Martin model. Special cases of our results are formulae forS _H andS _E in Aitken's (1935) model. In the case of general Gauss-Markoff modelS _H andS _E can also be expressed by means of projector operators for some subclasses of testable hypotheses. For these hypotheses, testing in Gauss-Markoff model is equivalent to testing in a Zyskind-Martin model.     

The direct use of likelihood for significance testing

An approach to significance testing by the direct interpretation of likelihood is defined, developed and distinguished from the traditional forms of tail-area testing and Bayesian testing. The emphasis is on conceptual issues. Some theoretical aspects of the new approach are sketched in the two cases of simple vs. simple hypotheses and simple vs. composite hypotheses.     

关于组建"环广州大学城体育圈"的理论构想

在大学城的建设过程中,"环广州大学城体育圈"不容忽视.文章提出了组建"环广州大学城体育圈"的理论构想及建议.     

基于有效市场假设的一种股票定价模型研究

有效市场假设揭示了股票价格反映会计信息,并且随市场的有效程度不同,股票价格所反映的信息量也不同.但证券市场上"异象"的存在使得人们开始更加关注股票的内在价值,市价/账面净值模型(M/B)便为投资者提供了一种估计股票内在价值的方法,其所反映的股票内在价值和股票市场价格的差异,对会计准则制定机构改进现有准则,完善信息披露制度也颇具价值.     

意识形态与经济人的成本——收益分析

本文用诺斯的意识形态理论,对经济人行为的成本和收益函数加以改造,并在此基础上提出了"新经济人"假设.该假设克服了传统经济人假设只讲物质需求,忽视精神需求的的缺陷,使之更加接近现实,从而能够更好地解释和预测经济人的行为.     

ON THE PERFORMANCE OF KOLMOGOROV-SMIRNOV TESTS ON STABLE RANDOM VARIABLES1

This paper provides two procedures to perform the Kolmogorov–Smirnov (K-S) tests on stable random variables. One utilizes the integral representation of the cumulative distribution function of this random variable to perform the K-S test; the other utilizes the Gil-Pelaez-Roseń transformation of data (Csörg(1983)) to test uniformity on (0,1) for the transformed sample. Both procedures are examined and evaluated by a simulation study.     

库仑定律在近代物理学中的精确度

本文论述了库仑定律与近代物理学有关的一些问题,指出它在10~(-15)～10~9cm量级的尺度,对直至0.4C量级速度运动的电荷都相当精确地成立,其精度高达,|ε|<10~(-16)或m_y<10~(-48)克。     

Une application des méthodes séquentielles aux tests de permutations

To carry out a permutation test we have to examine the n! permutations of the observations. In order to make the permutation test feasible, Dwass (1957) proposed to examine only a sample of these permutations. With the help of sequential methods, we obtain a test which is never less efficient than that proposed by Dwass or the permutation test itself, in the sense that it is as powerful and never requires more permutations to make a decision. In practice, we can expect to gain much efficiency.