电子旅游市场模式初探

电子旅游市场中信息和服务提高了交易的效率,根据参与方与信息技术的差别,电子旅游市场有两种模式,而且随着信息技术的发展,电子旅游市场的整合与协作是未来的发展重点。     

Modeling and Implementation of a New Negotiation Decision Support System for Conflict Resolution Under Uncertainty

Group Decision and Negotiation - The dynamic nature of negotiation and decision-making necessitates a flexible negotiation decision support system (NDSS) that can systematically investigate...     

Are Socially Responsible Firms Associated with Socially Responsible Citizens? A Study of Social Distancing During the Covid-19 Pandemic

Journal of Business Ethics - The literature on the interplay between geographic communities and organizations has largely ignored the role of individual residents. In adopting a meso-perspective,...     

房地产调控政策失效的原因探究

"国六条"出台已经一年,我国房地产价格不跌反涨,中央政府稳定房价的调控目标并未实现。从我国房地产立法滞后、存在调控时滞、房地产宏观调控中地方政府与中央政府及开发商之间的博弈、房地产市场供求矛盾突出等四个方面分析了调控房价政策失效的深层次原因。     

STARFIX定位系统简介

本文简述了美国新近研制的一种卫星定位系统STARFIX的工作原理、系统组成、优缺点以及使用场合,并与美国现有的和将来使用的其他几种定位系统作了比较。文章给出了系统原理图、分系统方框图和性能比较表。     

Reformulating Environmentally Constrained Traffic Equilibrium via a Smooth Gap Function

Various government laws have recently been enacted to alleviate the environmental deterioration of transportation systems. Environmental constraint is a valid means to explicitly reflect various environmental protection requirements imposed by the government. In this paper, we examine the environmentally constrained traffic equilibrium problem (EC-TEP), which is a fundamental tool for modeling and evaluating environmental protection requirements. Specifically, we provide an equivalent reformulation for the EC-TEP. The proposed reformulation adapts the concept of gap function to simultaneously reformulate the nonlinear complementarity conditions associated with the generalized user equilibrium conditions, environmental constraints, and conservation constraints as an equivalent unconstrained optimization problem. This gap function reformulation has two desirable features: (1) it can handle a general environmental constraint structure (linear or nonlinear; link-based or area-based) and a general link and route cost structure, enhancing the modeling adaptability and flexibility; (2) it is smooth and unconstrained, permitting a number of existing efficient algorithms for its solution. A gradient-based solution algorithm with a self-regulated averaging stepsize scheme is customized to solve the reformulated unconstrained optimization problem. Numerical examples are also provided to demonstrate the modeling flexibility of the proposed EC-TEP reformulation.     

金融发展中的制度因素:理论框架与国际经验

本文在现有文献的基础上,提出了"制度与金融发展"这一新的理论命题,并利用跨国截面数据系统地检验了该理论.从国际经验来看,产权结构、法律制度和金融利益集团力量都对金融发展有显著的影响.本文的结论是:只有进一步完善产权、法律以及信用等制度才能推动中国金融进一步发展.     

人民币实际汇率变动对我国进出口贸易影响:1997-2006

本文选取1997-2006年的月度数据,运用VAR方法,考虑了FDI存量和我国加工贸易特征的影响后,对贸易收支与人民币实际汇率变动关系进行了动态分析,并得出如下结论:人民币实际有效汇率的变动显著影响了我国贸易收支;短期内J曲线效应存在,时滞约为5个月;汇率变动对进出口贸易影响的同向性明显;我国贸易收支的收入效应大于价格效应等.     

中国经济学教育面向新世纪的思考

回顾建国以来我国现代经济学教育走过的道路,要对新世纪中国经济学的教育进行展望,中国经济学教育界有一个基本的问题需要澄清,这就是什么是“经济学”。作者从经济学发展的历史轨迹中去寻找答案,认为所谓的“经济学”实际上是一个由问题、工具、理论等三个不同阶段构成的生动的“过程”。借助这个“过程论”,作者分析了中国经济学界的一些问题,并据此对新世纪中国经济学的教育进行了展望。