THE OPTIMAL CRITICAL VALUE OF A PRE-TEST FOR AN INEQUALITY RESTRICTION IN A MIS-SPECIFIED REGRESSION MODEL

Optimal critical values are derived for a pre-test of an inequality restriction in a model where relevant regressors are unwittingly omitted. The criterion adopted is either that of the minimum average relative risk, or that of the mini-max regret. The latter approach yields an optimal critical value which is sensitive to the degree of model mis-specification, while the former criterion always leads to the choice of the unrestricted estimator.     

论现楼按揭贷款预期违约救济方法的具体运用

我国合同法有限制、创造性地吸收了英美法系的预期违约规则,形成了具有中国特色的预期违约制度。合同法总则第94条第2项以及第108条明确规定了预期违约的救济方法。文章在分析预期违约救济方法的基础上,重点探讨了现楼按揭贷款预期违约救济方法的具体运用。     

On the bounded regret of empirical bayes estimators

Let (θ₁,x₁),…,(θ_n,x_n) be independent and identically distributed random vectors with E(xθ) = θ and Var(x|θ) = a + bθ + cθ². Let t_i be the linear Bayes estimator of θ_i and θ~_i be the linear empirical Bayes estimator of θ_i as proposed in Robbins (1983). When Ex and Var x are unknown to the statistician. The regret of using θ~_i instead of t_i because of ignorance of the mean and the variance is r_i = E(θ_i ? θ_i)² ?E(t_i ?θ_i)². Under appropriate conditions cumulative regret R_n = r₁+…r_n is shown to have a finite limit even when n tends to infinity. The limit can be explicitly computed in terms of a,b,c and the first four moments of x.     

《论语》"吾未尝无诲"句考辨

《论语》“吾未尝无诲”句原为“吾未尝无悔”,本章原本之主旨不是孔子“有教无类”之教育精神的自白,而是自我反省、自我完善之“谨饬砥砺”精神的自白。《论语》原用的是“束修”一词,而不是“束”;“束修”之本义,指十五岁成童束发修身。     

Axiomatization of a Preference for Most Probable Winner

In binary choice between discrete outcome lotteries, an individual may prefer lottery L₁ to lottery L₂ when the probability that L₁ delivers a better outcome than L₂ is higher than the probability that L₂ delivers a better outcome than L₁. Such a preference can be rationalized by three standard axioms (solvability, convexity and symmetry) and one less standard axiom (a fanning-in). A preference for the most probable winner can be represented by a skew-symmetric bilinear utility function. Such a utility function has the structure of a regret theory when lottery outcomes are perceived as ordinal and the assumption of regret aversion is replaced with a preference for a win. The empirical evidence supporting the proposed system of axioms is discussed.     

歌剧《伤逝·风萧瑟》的音乐分析及演唱处理

歌剧《伤逝》改编自鲁迅先生的同名小说《伤逝》,《风萧瑟》是这部歌剧中"秋"的一部分,也是一首咏叹调女高音歌曲。本文从作者创作背景、音乐形象、演唱处理等方面对这首咏叹调歌曲进行分析,认为《风萧瑟》这首歌曲唱词优美简洁、富有诗意,旋律哀婉动人、引人入胜。     

湘娥即屈原 屈原即少陵

屈原作《湘夫人》抒发约黄昏而不见之哀怨，托二妃神话以寄犹冀一遇之意。杜甫步尘屈原，作《湘夫人祠》抒发湘妃祠破败荒凉之慨，借苍梧遗十艮以寓眷恋不忘之意。时代变迁，湘夫人祠庙貌沧桑冷寂，杜甫落魄楚地，谒祠凭吊屈原和湘夫人。其《湘夫人祠》犹近体中《湘夫人》。屈原与杜甫似乎命中注定要走在一起，两个冤魂，抒同一情怀，悲凉之身，沉同一条江。屈原《湘夫人》与杜甫《湘夫人祠》乃借他人酒杯以浇自己心中块磊，这是因为他们从湘妃苍梧遗恨中看到了自己的影子。正是：湘娥即屈原，屈原即少陵。     

网络购物中消费者后悔应对策略的维度与量表

基于消费者应对策略,采用规范的量表开发流程,对网络购物中消费者后悔应对策略的维度与量表进行了探索。结果表明,其维度应该是计划解决、表达应对、心理摆脱与坦然接受,而表达应对又包括网下寻求社会支持以及网上表达应对（网上寻求安慰和社交平台诉说）。同时,设计开发出具有良好信度与效度的测评量表。该研究丰富了消费者应对策略,并对网商进行消费者后悔管理有重要启示。     

Prosocial risk taking and interpersonal regret in children: An individual differences study

The relations between prosocial risk taking (taking a risk to benefit another person; PSRT) and interpersonal regret (regret that one's choices have caused a poor outcome for another person) were examined in 192 children aged 7–9. PSRT was measured by children's choices within a gambling task in which one choice guaranteed participants a good prize whereas the other involved risking this prize to help a peer also win a good prize. Interpersonal regret was assessed within the same task by examining children's change in emotion when they learned they would have won a better prize for a peer had they chosen differently. Performance on this task was also examined in relation to sympathy and resource sharing. Findings indicated that the operationalizations of PSRT and interpersonal regret were meaningful. Children who took a prosocial risk were more generous in a resource sharing task. In some circumstances, children who took a prosocial risk were also more likely to experience interpersonal regret than those who did not take a prosocial risk, indicating that experiencing interpersonal regret may be related to individual differences in prosociality. However, experiencing interpersonal regret did not have a direct effect on subsequent prosocial behavior, when measured by resource sharing. We consider findings in relation to a possible distinction between outcome and process regret and the generalizability of the behavioral consequences of regret.     

不安抗辩与预期违约的体系构建

不安抗辩和预期违约分别是大陆法系和英美法系的法律制度,在保护守约方使其提前获得救济,防范合同成立后至履行期到来前出现的履约风险方面起到了重要作用。我国合同法中不但赋予当事人不安抗辩权,还建立了预期违约制度,对此学者们存在诸多争议。我国合同法以大陆法为基础,并吸收了国际立法在预期违约上的先进之处,设计出符合我国实际的不安抗辩和预期违约制度,二者之间的过渡衔接合理,构成了具有中国特色的体系。