论研究奥运经济影响的思路与方法

北京 2 0 0 8年奥运会将对首都经济产生重要的影响。研究奥运对经济影响的思路和方法主要包括 :首先 ,从空间范围和时间维度上界定“奥运的经济影响”。其次 ,确定研究思路或技术路线。再次 ,如何把奥运的经济影响从有关经济指标的数值中分离出来。最后 ,确定研究框架。在这个框架内 ,可以把奥运对经济的影响区分为一般影响和特殊影响 ,并把奥运的经济影响分解为若干个主题来进行研究。     

On Myopic Stability Concepts for Hedonic Games

We present a unified look at myopic stability concepts for hedonic games, and discuss the status of the existence problems of stable coalition structures. In particular, we show that contractual strictly core stable coalition structures always exist, and present a sufficient condition for the existence of contractually Nash stable coalition structures on the class of separable games. We gratefully acknowledge financial support from the Alexander von Humboldt Foundation (D. Dimitrov)“by “D. Dimitrov gratefully acknowledges financial support from the Alexander von Humboldt Foundation.     

On the Effect of Risk Aversion in Bimatrix Games

Nash equilibria with identical supports are compared for bimatrix games that are different with respect to the risk aversion of player 2. For equilibria in 2× 2-bimatrix games and for equilibria with efficient supports in coordination games it is established for which cases increased risk aversion of player 2 benefits or hurts player 2.     

On the emptiness of the stability set of order d

We know from Li's theorem (1993) that the stability set of order d may be empty for some preference profiles. However, one may wonder whether such situations are just rare oddities or not. In this paper, we partially answer this question by considering the restrictive case where the number of alternatives is the smallest compatible with an empty stability set. More precisely, we provide an upper bound on the probability for having an empty stability set of order d for the majority game under the Impartial Weak Ordering Culture assumption. This upper bound is already extremely low for small population and tends to zero as the number of individuals goes to infinity.     

传统民间游戏的源流、价值和保护

民俗文化作为中国传统文化的重要内容,在营造文化氛围、赓续文化血脉、推进文明进程、培养文化认同感等方面发挥了积极的作用。但是民俗文化的发展并不平衡。其中作为民俗重要内容的传统民间游戏正处于飘摇之中,现状并不乐观。积极、合理地保护传统民间游戏,不仅是民俗文化理性传承的需要,也是塑造民族精神、促进人类健康的需要。     

Five legitimate definitions of correlated equilibrium in games with incomplete information

Aumann's (1987) theorem shows that correlated equilibrium is an expression of Bayesian rationality. We extend this result to games with incomplete information.First, we rely on Harsanyi's (1967) model and represent the underlying multiperson decision problem as a fixed game with imperfect information. We survey four definitions of correlated equilibrium which have appeared in the literature. We show that these definitions are not equivalent to each other. We prove that one of them fits Aumann's framework; the agents normal form correlated equilibrium is an expression of Bayesian rationality in games with incomplete information.We also follow a universal Bayesian approach based on Mertens and Zamir's (1985) construction of the universal beliefs space. Hierarchies of beliefs over independent variables (states of nature) and dependent variables (actions) are then constructed simultaneously. We establish that the universal set of Bayesian solutions satisfies another extension of Aumann's theorem.We get the following corollary: once the types of the players are not fixed by the model, the various definitions of correlated equilibrium previously considered are equivalent.     

On the Owen Set of Transportation Solutions

This paper presents an axiomatic characterization of the Owen set of transportation games. In the characterization we use six properties including consistency (CONS2) and splitting and merging (SM) which are firstly proposed and defined for this setup in the present paper.     

中国原创网游的语言变异与英译

在中国原创网游在国际市场的影响力不断增长之际,原创网游的翻译却一直未能引起网游开发企业的足够重视,成为影响与制约这些原创网游的商业价值和文化内涵的不利因素。本文欲从语言变异入手,剖析和探究这种网络语言在语音、词汇、语义和句法四个方面的语言变异现象,提出语言变异的英译原则和策略,以期为中国原创网游的英译实践带来一些有益的启示。     

论沈从文的儿童文学创作

沈从文的儿童文学创作在中国现代儿童文学史上长期以来未得到应有的重视.试图通过对沈从文的儿童文学创作作较为全面的梳理、概括和分析,以肯定其在中国现代儿童文学史上的地位和贡献.     

体育游戏在中学体育教学中的运用与研究

体育游戏是丰富体育活动的重要内容和提高体育教学质量的有效手段之一。由于体育游戏具有简单的情节性、丰富的趣味性和激烈的竞争性,所以经常参加体育游戏活动可强身心、炼意志、促进身体、生理和技能的发展,提高心理健康水平。通过对体育游戏的本质特征、在体育课堂教学中的作用及其选编原则的分析,来研究体育游戏在体育教学中的运用,提出体育游戏教学中对教师素质的具体要求。