对新版《李大钊全集》第二卷有关日本问题的疏证与补注

《李大钊全集》＂最新注释本＂第2卷,对李大钊著作中提及的与日本有关的问题,有的注为＂不详＂;有的虽未注＂不详＂,也是应该予以注释的。在已作注释的一些问题中,也有值得商榷之处。     

Connected Substitutes and Invertibility of Demand

We consider the invertibility (injectivity) of a nonparametric nonseparable demand system. Invertibility of demand is important in several contexts, including identification of demand, estimation of demand, testing of revealed preference, and economic theory exploiting existence of an inverse demand function or (in an exchange economy) uniqueness of Walrasian equilibrium prices. We introduce the notion of “connected substitutes” and show that this structure is sufficient for invertibility. The connected substitutes conditions require weak substitution between all goods and sufficient strict substitution to necessitate treating them in a single demand system. The connected substitutes conditions have transparent economic interpretation, are easily checked, and are satisfied in many standard models. They need only hold under some transformation of demand and can accommodate many models in which goods are complements. They allow one to show invertibility without strict gross substitutes, functional form restrictions, smoothness assumptions, or strong domain restrictions. When the restriction to weak substitutes is maintained, our sufficient conditions are also “nearly necessary” for even local invertibility.     

从《金瓶梅》看补语演变的向心趋势

<金瓶梅>含有补语的句子中动语、宾语和补语的语序与现代汉语的情况很不相同.比较之后,可以看出补语演变过程中的向心趋势.补语对中心语具有向心力是语义表达的客观要求,句子结构要求平衡可能也是一个原因.     

立方补数的两个渐近公式

在通过对任一正整数提出另外一种唯一分解式的基础上,利用初等方法得到了关于立方补数的几个有趣的渐近公式。     

Equilibria and Indivisibilities: Gross Substitutes and Complements

This paper examines an exchange economy with heterogeneous indivisible objects that can be substitutable or complementary. We show that a competitive equilibrium exists in such economies, provided that all the objects can be partitioned into two groups, and from the viewpoint of each agent, objects in the same group are substitutes and objects across the two groups are complements. This condition generalizes the well‐known Kelso–Crawford gross substitutes condition and is called gross substitutes and complements. We also provide practical and typical examples from which substitutes and complements are both jointly observed.     

多目标企业间的效仿与追逐

经典的经济学理论总是假设企业最大化自己的利润,但是现实中企业有各种动机来确立多重目标,或非最大化利润的目标。文章主要讨论了寡头企业在确立了非最大化利润的目标函数,即企业的目标是最大化一定权重的利润和一定权重的其他目标;从战略替代品、战略互补品等企业行动之间的关系,以及目标之间的关系等,来分析企业之间行为的相互影响,企业之间目标的影响,以及企业目标对于竞争对手的影响。论文中还具体讨论了两种非最大化利润的目标函数,其一是包含了企业自己收益的目标函数,另一个是包含了行业某个利润水平的目标函数。     

《洛阳伽蓝记》的结果补语

《洛阳伽蓝记》的结果补语正处于发展成熟期 ,反映了中古汉语的语法特点     

蚕食替代,还是相得益彰--张东荪科学与哲学关系主张述评

科学与哲学的关系问题是20世纪初中国哲学界争论的一个热点问题。对于当时流行的“科学已蚕食了哲学”、“科学最终将取代哲学”等观点,张东荪进行了自己的思考与回答,他认为,科学是不能代替哲学的,科学与哲学各有特质,二者不但无抗争而且能相得益彰,这是在20世纪二三十年代科学主义思潮涌动之中的另一种声音。重温他的观点,在哲学的自我理解中详细探索科学与哲学的关系会有益于深化我们对哲学的理解。     

老挝语母语者汉语趋向补语习得情况分析

基于对老挝语母语者中介语语料库的统计分析,得出老挝语母语者汉语趋向补语的习得顺序,同时基于泛化
理论分析老挝语母语者习得汉语趋向补语的偏误类型和习得难点。在将老挝语母语者的习得顺序和其他非汉语母语
者的习得顺序二者进行对比的基础上,指出老挝语母语者习得“动词+ 处所宾语+ 来/去（本义）”的顺序比其他非汉语
母语者提前,这一差异体现了趋向补语习得的非线性。针对老挝语母语者习得汉语的以下难点：（1）简单趋向补语误
代复合趋向补语;（2）“到”作趋向补语;（3）回避使用“把”字句;（4）“动词+ 处所宾语+ 来/去”句式的习得;（5）同类
补语之间的误代;（6）动词后同时带复合趋向补语带宾语时,宾语和补语的错序通过例证说明如何进行针对性的教学,
提高教学效率。     

Efficiency and Equilibrium with Dynamic Increasing Aggregate Returns due to Demand Complementarities

When do dynamic nonconvexities at the disaggregate level translate into dynamic nonconvexities at the aggregate level? We address this question in a framework where the production of differentiated intermediate inputs is subject to dynamic nonconvexities, and we show that the answer depends on the degree of Hicks-Allen complementarity (substitutability) between differentiated inputs. In our simplest model, a generalization of Judd (1985) and Grossman and Helpman (1991) among many others, there are dynamic nonconvexities at the aggregate level if and only if differentiated inputs are Hicks-Allen complements. We also compare dynamic equilibrium and optimal allocations in the presence of aggregate dynamic nonconvexities due to Hicks-Allen complementarities between differentiated inputs.