机器下棋中的常用算法

本文以简单的井子棋为例,介绍了目前计算机对弈软件中,通常采用的一些搜索算法,并对其进行了简单的比较     

美国自由贸易协定战略及中国的应对措施

布什政府上台后,美国开始大踏步地实施自由贸易协定战略,构建了以美国为中心的双边及区域的多元化的自由贸易协定网络体系。文章从美国自由贸易战略格局入手,对其战略意义进行了总结,同时,针对该战略对中国的影响,提出了相应的对策和建议,认为中国应借鉴美国自由贸易协定战略的经验,大力开展自由贸易协定谈判。     

华为技术的泰国淘金路

在华为的国际化道路上．东南亚是其中重要的一环，泰国更是华为在海外的第二大市场．每年销售额超过一亿美元。华为自1999年开始拓展泰国市场，2001年正式注册泰国子公司，经过六年的努力，华为和泰国的电信业一起成长，逐渐发展成为泰国电信业的主流供应商。[编者按]     

Drivers and implications of entrepreneurial orientation for academic spin-offs

International Entrepreneurship and Management Journal - This paper has been designed with a dual goal. On the one hand, the paper aims to examine the role of management teams, industry agents, and...     

基于生态足迹模型的可持续性度量研究--以吉林省大安市为例

针对吉林省大安市发展现状和存在的严重生态环境问题,运用生态足迹模型,采用多源数据,首次对大安市生态环境的可持续发展状况进行了定量研究;在此基础上,运用相对指标法对可持续发展的量化结果进行分级。研究表明,2001年大安市的生态需求大于生态供给,生态呈现“供不应求”的局面,人均生态赤字为0.56hm2,处于弱不可持续发展状态。     

关于备件物流研究现状的综述

论述了备件物流研究的基本过程,并对国了内外备件物流的研究状况进行了综述,最后对未来备件物流研究做了展望。     

Recursive utility with unbounded aggregators

A new framework is presented for the study of the existence and uniqueness of solutions to the Koopmans’ equation in the unbounded case, that is based on the contraction mapping approach. In the bounded below case with bounded consumption streams, uniqueness of the solution in the whole class of weak-star continuous utility functions is obtained. When the aggregator is unbounded below and/or consumption streams are unbounded, existence of a weak-star continuous solution is shown, and a simple criterium to check the sufficient conditions for existence is provided. Juan Pablo Rincón-Zapatero and Carlos Rodríguez-Palmero gratefully acknowledge financial support by the Ministerio de Educación y Ciencia and FEDER funds under Research Projects MTM2005-06534 and SEJ2005-08709/ECON, respectively, and by Consejería de Educación de la Junta de Castilla y León under Research Projects VA99/04 and VA017B05, respectively. This paper has substantially benefited from the comments of an anonymous referee. Particular and special thanks are due to Robert Becker for his very helpful comments and valuable suggestions.     

The interactions between natural and physical capitals in the tourist lifecycle model

This paper presents a model of the interactions between natural resources and physical capital in the evolution of a tourist destination. The projected trajectory of the number of tourists approaches the classical lifecycle pattern. The post-stagnation phase is analyzed within the model, obtaining different patterns which depend on the impacts of physical capital on both demand and environmental degradation. The magnitudes of these impacts are determined by the type of tourism. An empirical application to the case of the tourist industry in the Canary Islands (Spain) is presented, showing that the model can represent the general characteristics of the post-stagnation phase of a tourist destination.     

Reinforcing the Link Between Contributions and Pensions: The Effect of the Population Aging

In this paper, we analyze a majority voting process on the earnings-related part of pension benefits in a Social Security system with flexible retirement. We show that the aging of the population may make it easier to implement one of the proposed reforms to achieve a delay in the average retirement age of workers, to reinforce the link between contributions and pensions.     

中美审计结果公告制度实施环境的比较及启示

审计结果公告在发达国家是一种通行做法,近年来我国也颁布了相关的法律法规,但完整的审计结果公告制度尚未建立。审计结果公告制度的建立是一个系统工程,受政府信息公开程度、审计模式、审计规范体系等环境因素的影响和制约。文章从以上环境因素着手,分析比较了中美审计结果公告制度的异同,以期对我国审计结果公告制度建立和健全提供参考。