失地农民问题与制度变迁

在制度演进论的框架下分析了农民失地的制度变迁过程,重新分析了被我国学者忽视的失地农民和城市居民作为行为主体参与博弈过程所起到的重要作用,提到了要关注制度执行的效率与结果及失地农民补偿后会带来的社会问题。提出加强制度的执行监管,建立一种平衡机制,达到社会和谐的目标。     

走向深空--测控通信的发展方向

在传统的贸易模式下,我国经济和贸易的快速增长带来很多负面效应, 引起“三高一低”,即原材料的高强度消耗、高度污染、对国外市场的高依赖及低附加值,我国需要“三低一高”的新贸易模式来解决这些问题。本文通过图表和数据说明了旧贸易模式的危害及在旧贸易模式下我国处于不利地位,我国需要转变原有的贸易模式,并总结了将旧贸易模式转变为新贸易模式的途径。     

补贴概念与效果

补贴是一个相当复杂的议题,其复杂性不仅表现在概念上,也表现在它可能产生的效果上。补贴可能增加也可能降低其受体的利润水平;可能对国际贸易产生扭曲效果,其影响也可能仅限于国内;可能有助于政府实现其意欲达成的目标,也可能背离其初衷;可能增加或降低政府收益,也可能无影响。把补贴宽泛地界定为有可能在短期、中期或长期对其受体的利润水平产生影响的政府作为(或不作为),有助于使决策者把关注重点转向补贴效果,从而有利于其做出应否维持、增加、减少或消除特定补贴的判断。     

Hypothesis testing and parameter estimation based onM-statistics ink samples with unequal variances

Summary Ink samples with unequal variances,M-tests for homogeneity ofk location parameters are proposed. The asymptoticχ ²-distributions of the test statistics and the robustness of the tests are investigated. NextM-estimators (ME’s) of parameters are discussed. Furthermore positive-part shrinkage versions (PSME’s) of theM-estimators for the location parameters are considered along with modified James-Stein estimation rule. In asymptotic distributional risks based on a special feasible loss, it is shown that the PSME’s dominate the ME’s, and preliminary test and shrinkageM-versions fork≧4.     

使股份制成为部分高校公有制主要实现形式途径探析

高等教育要快速发展,必须积极探索股份制这一新的办学模式,使部分高校通过股份制的形式,实现投资主体的多元化,加快高等教育的改革步伐。其途径是:积极提倡和推进非国有资本参与部分高校的改革改组;积极推行股份制,使之成为部分高校公有制的主要实现形式;积极发展"教职工股份     

Efficient rank tests for semiparametric competing risk models

We consider a semiparametric competing risk model given by k independent survival times. The paper offers an asymptotic treatment of tests for the semiparametric null hypothesis of equality of the underlying risks. It turns out that modified rank tests are asymptotically efficient for certain semiparametric submodels, where the baseline hazard is a nuisance parameter. In addition, the asymptotic relative efficiency of the present tests is derived. A comparison of asymptotic power functions can then be used to classify various tests proposed earlier in the literature. For instance a chi-square type test is efficient for proportional hazards. Data driven tests of likelihood ratio type are proposed for cones of alternatives. We will consider certain stochastically increasing alternatives as a special example. The paper shows how the concept of local asymptotic normality of Le Cam works for hazard oriented models.     

The benefits of non-radial vs. radial super-efficiency DEA: an application to burden-sharing amongst NATO member nations

Using radial super-efficiency data envelopment analysis (DEA) has improved the discriminating performance across efficient decision-making units (DMUs). This paper extends the super-efficiency approach to a non-radial super-efficiency DEA (NRSE-DEA) index. NRSE-DEA is shown to be invariant to units of input (output) measurement. NRSE-DEA is illustrated here via an application to NATO burden-sharing assessment in which the DMUs are the member nations of NATO. The NRSE-DEA provides additional insights into the ranking of efficient countries, suggesting which are absorbing a particularly large share of NATO responsibilities. The NRSE-DEA generates a smaller set of efficient DMUs. This, in turn, provides more discriminatory power, a more accurate measure of super-efficiency, a more meaningful ranking of the efficient burden sharing countries, and a more reliable assessment of contributions by NATO members, amongst other policy issues.     

码移键控系统的性能分析

讨论了码移键控(CSK)基本原理、基于数字匹配滤波器(DMF)的快速捕获结构和用相关乘法器代替数字匹配滤波器的快速捕获结构,并对CSK系统的接收性能进行数学分析,得到了数据码错误率公式。     

一种实用的域内标记算法及其公平性

本文从6个方面对WTO有关协定的英文文本的语言特点作了分析,结 合翻译实践经验,对其翻译提出些建设性的意见。     

The "Invisible Hand"

The argument of the "Invisible Hand" is that the system of free enterprise benefits society in general even though it is not the aim of any particular economic agent to do that. This article proposes an analysis of why this is so. The key is that the morality of the market forbids only force and fraud; it does not require people to do good to others. Nevertheless, when all transactions are voluntary to both parties, that is exactly what we can expect to happen. This is both because the sum of the benefits of innumerable transactions, which are beneficial to both parties, is very great, but also and especially because of Positive Externalities. People use the particular products and services they get in market exchanges in ways that benefit others in ways not at all foreseen by the agents to those transactions at the time. These externalities range from the benefits of invention and ingenuity to the exercise of charity and philanthropy, all of which flourish in developed capitalist societies.