电子商务和旅游:塞舌尔电子旅游的现状和影响

本论文主要阐述电子商务对当代经济,尤其是对于在服务业的电子旅游方面所产生的冲击和影响。在信息和通信技术的推动下,电子商务改变了全世界商务运行的方式。尽管如此,本调查主要针对于以旅游业为主要外汇来源的发展中的塞舌尔岛。主要从以下几方面论述,第一,旅游业的概况,第二,突出问题所在,第三,目前解决这些问题的方法,最后,对于改善在这个产业中的技术发展的建议。文中的数据自于游客和商业调查并将用基本的评估和回归分析法来进行分析。调查的主要目的在于首先引起公众对于当今经济中电子商务的重要性和含义,其次,为塞舌尔电子商务将来的政策发展提供参考。我希望决策者和一些生意人能以此文为借鉴,帮助他们不仅为塞舌尔的旅游业,并且为塞舌尔经济的其他方面的未来和技术进步铺平道路。     

Review Article of Drèze's essays on economic decisions under uncertainty

Jacques Drèze has participated significantly in many fields of economic analysis. The book we have reviewed is limited to his main contributions to the economics of uncertainty and information. It is rich in ideas, models, and results for graduate students and researchers who are interested in this now basic dimension of economic analysis. We hope that its publication will permit the public at large to better appreciate the importance of its author's contributions.Economics Department and CRT Université de Montréal C.P. 6128. Succursale A Montréal (Québec) Canada H3C 3J7. Kenneth Arrow, Danielle Blanchard, Camille Bronsard, Leonard Dudley, Robert Gagné, Edi Karni and Françoise Shoumaker provided very useful comments on a first version of this review. Thanks are also due to Carole Laflamme for editorial assistance.     

我国保险业市场化改革及其绩效:理论模型及实证分析

保险业市场化改革改变了其市场结构和产权结构。市场化改革有利于增进消费者、政府、保险企业员工福利,但因其强化了竞争,使得对其他类型保险公司而言,原先享受较高程度政策优待的国有保险公司经营状况恶化。     

加快商业银行业务创新的思考

在国际、国内同业竞争日益加剧的今天，加快商业银行业务创新具有重要的战略意义。商业银行业务创新要围绕新兴市场、私人金融服务市场和电子银行来展开；实施商业银行业务创新要以人才为依托。     

Demographic Shock and Social Security: A Political Economy Perspective

We assume that individual voters differ not only according to age but also productivity. In the steady state, workers with wages in the intermediate range join the retired persons to form a majority and vote for a positive level of social security. When a shock decreases population growth, entrenched interests can constrain majority voting decisions and prevent reforms in the name of entitlements. We show that from a Rawlsian viewpoint it may be desirable to rely on these entitlements to protect the low wage earners of the transition generations. However, when the possibility of fixing a basic pension is introduced, it constitutes a better instrument than entitlements.     

Diffidence Theorem, State-Dependent Preferences, and DARA

C. Gollier (The Economics of Risk and Time. Cambridge: MIT Press, 2001) has developed a standard technique based on the diffidence theorem. This theorem provides a very simple instrument to solve relatively sophisticated problems when preferences are state-independent. The object of this article is to show that the theorem is also very useful to derive significant results with state-dependent preferences. Using the reference set notion and an extension of the diffidence theorem, we establish formally necessary and sufficient conditions on the reference set, in order to obtain prudence and decreasing absolute risk aversion. Examples of DARA utility functions compatible with non-linear reference sets are presented in the Appendix.     

同轴串接螺线管的自感及互感

本文对两个同轴螺线管串接后的自感、互感进行了定量计算,并对某些特殊情况也进行了推导,同时指出了某些论述之误。     

论珠江上游地区旅游商品文化的提炼

珠江上游地区旅游商品文化的提炼有着一些有利条件,也存在着一些不利因素。珠江上游地区旅游商品文化的提炼的基本思路是以旅游商品的开发为载体,以地方文化背景为依托,加强旅游商品的设计和包装,实现传统工艺和现代技术手段的有机结合。     

我国发展循环经济的制度创新策略探讨

有效制度供给不足是造成生态环境问题,引发循环经济的诱因,因此,进行制度创新是发展循环经济的基础和保障;在循环经济的制度创新中,政府应该承担起创新的主体。而在我国,在循环经济的制度创新方式上,应该采用渐变性和激变性相结合的创新方式,在循环经济的制度创新内容应重点对循环经济的法律制度、激励制度、产权制度等进行创新。     

扬子石化利用尾气提纯氢气的经济可行性分析

扬子石化公司对氢气的需求量不断增加，拟建一套利用尾气提纯氢气的装置来填补缺口，为此对扬子石化公司利用尾气提纯项目进行成本，盈利能力及不确定性分析，研究项目的经济可行性。