裴迪考论

裴迪是和王维同时而稍后的田园诗人 ,他的一生中大概有 2 0年是跟随着王维度过的。裴迪在唐代并不是显赫的诗人。但是他与当时除了李白以外的其他大诗人都有或多或少的联系。考证他的事迹和与这些诗人的关系 ,也可以使这些诗人得到更多的还原以被人们了解。     

Deposit Insurance,Institutions, and Bank Interest Rates

Many recent institutional reforms of the financial system have relied on the introduction of an explicit scheme of deposit insurance. This instrument aims at two main targets, contributing to systemic stability and protecting depositors. However, it may also affect the interest rate spread in the banking system, which can be viewed as an indicator of either inefficiency or market power in this financial segment. This paper provides an empirical investigation of the effect of deposit insurance and other institutional and economic variables on bank interest rates across countries. We find that deposit insurance increases the lending–deposit spread in banking. The main effect seems to arise not from the deposit side though, but from an increase in the lending rate. We interpret this result as evidence of the presence of moral hazard problems related to this instrument. We also find that higher quality of institutions is associated with lower spreads, thus contributing to eroding sources of market power in the banking sector.     

A Bayesian Hierarchical Model for the Evaluation of a Website

Consider a website and the surfers visiting its pages. A typical issue of interest, for example while monitoring an advertising campaign, concerns whether a specific page has been designed successfully, i.e. is able to attract surfers or address them to other pages within the site. We assume that the surfing behaviour is fully described by the transition probabilities from one page to another, so that a clickstream (sequence of consecutively visited pages) can be viewed as a finite-state-space Markov chain. We then implement a variety of hierarchical prior distributions on the multivariate logits of the transition probabilities and define, for each page, a content effect and a link effect. The former measures the attractiveness of the page due to its contents, while the latter signals its ability to suggest further interesting links within the site. Moreover, we define an additional effect, representing overall page success, which incorporates both effects previously described. Using WinBUGS, we provide estimates and credible intervals for each of the above effects and rank pages accordingly.     

An experimental investigation of the impact of ambiguity on the valuationof self-insurance and self-protection

We build two experimental markets to examine individual valuations of risk reductions with two risk-management tools: self-insurance and self-protection. We find no positive evidence that the risk-reducing mechanisms constitute a “frame.” Ambiguity in the probability on average affects valuation only weakly, and changes in the representation of ambiguity do not alter valuation. Finally, unlike the results obtained by Hogarth and Kunreuther for the case of market insurance, our findings do not provide a strong support for the “Anchoring and Adjustment” ambiguity model.     

跨界搜寻对新创科技企业绩效的影响

跨界搜寻是新创科技企业突破资源短缺和技术匮乏双重束缚的重要途径,然而其内在作用机理尚待挖掘剖析。基于资源拼凑理论视角,构建了跨界搜寻影响新创科技企业绩效的中介模型,进而采用多元回归分析和Bootstrap等方法,对201份企业样本数据进行了实证分析。研究结果表明:（1）前瞻型搜寻与反应型搜寻对新创科技企业绩效均具有显著正向影响;（2）前瞻型搜寻与反应型搜寻之间存在互补效应,该互补效应显著正向影响新创科技企业绩效;（3）在作用机制方面,资源拼凑在前瞻型搜寻与新创科技企业绩效之间起到部分中介作用,而在反应型搜寻与新创科技企业绩效之间发挥完全中介作用。     

李达对中国社会主义革命和建设道路的探索

李达是马克思主义中国化的早期探索者,在大论战中对各种"社会思潮"进行了辩证的分析,初步回答了"什么是社会主义"的基本问题,为科学社会主义的传播开辟了主流阵地,并从领导核心、经济建设、发展生产、依靠力量和思想路线等角度系统阐发了社会主义建设需遵循的一般规律。建国后,李达围绕我国社会主义改造、法制建设、外交政策和科教工作展开了具体探索,形成了丰富的社会主义改造和建设思想,对今天的社会主义现代化建设仍具有重要的指导意义。     

商务模式创新复杂性研究的计算实验方法

商务模式及其创新的复杂性特征决定了商务模式创新研究有必要采用计算实验的方法.分析商务模式创新研究的基本思路,提出应用计算实验的方法研究商务模式创新的方法论基础及其基本框架.分析和比较计算实验与计算机仿真(模拟)的区别与联系,提出应用粒子群优化算法、遗传算法等智能算法和复杂适应系统理论模拟商务模式的演化过程,进而对商务模式创新进行计算实验研究的基本方法.认为基于智能算法的计算实验为商务模式创新复杂性研究提供了有效的方法论、工具和平台,是商务模式创新复杂性研究的根本途径.     

Maximum Likelihood Estimation of Input Demand Models with Fixed Costs of Adjustment

Traditional models of input demand rely upon convex and symmetric adjustment costs. However, the fortune of this highly restrictive approach is due more to analytical convenience than to empirical relevance. In this note we examine the model under more realistic hypothesis of fixed costs, show that it can be cast in the form of a Double Censored Random Effect Tobit Model, derive its likelihood function, and finally evaluate the performance of the ML estimators through a Monte Carlo experiment. The performances, although strongly dependent on the degree of censoring, appear to be promising.     

略论中国古典戏曲中的咒语现象

在中国古典戏曲描写中,"咒语"常出现在唱词和科白里。就形态上看,可分为自咒与他咒两种类型;就内涵上看则涉及爱情生活、巫术攻侵、战事、佛道文化等等方面。对这些咒语事象作民俗文化学角度的考察,探究它们的形式、内涵、源流、变化及其在其它文体文献中的反映,可以见出文学母题学的传承性意义,以及戏曲作品"叙事单元"模态化的规律。     

职业学院和师范学院大学生自我意识发展的比较研究

为了深入了解职业院校和师范院校大学生自我意识的发展特点,本研究运用《自我意识量表》对两类两所学校664名大学生进行调查。结果发现：（1）两种院校大学生的自我意识水平总体上都处于中等,但两个维度之间发展不平衡,公众自我维度的得分显著高于内在自我维度;（2）女生在公众自我维度上显著高于男生,年龄为18岁及以下的学生在自我意识总分上显著低于其他年龄的学生;（3）师范院校大学生在公众自我维度上的得分显著高于职业院校大学生。