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复杂适应经济系统研究的新进展——基于代理人的计算经济学
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作者 楼强 《世界经济情况》 2005年第1期32-33,共2页
本文简单介绍了基于代理人的计算经济学的起源与理论创新,归纳其主要的研究领域,并指出理论模型的不足。
关键词 复杂适应经济系统 代理人 计算经济 理论创新 行为模式演化 学习机制
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Understanding the Interrelationship Between Global Terrorist Attacks and the Citizen's Wellbeing." The Complexity of Terrorism 被引量:1
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作者 Aida Huerta-Barrientos Pablo Padilla Longoria 《Sociology Study》 2016年第5期283-292,共10页
Terrorism is a global phenomenon that over the last 44 years more than 140,000 terrorist events have been carried out. In the period from 1970-2001, the five countries with the largest number of terrorist attacks were... Terrorism is a global phenomenon that over the last 44 years more than 140,000 terrorist events have been carried out. In the period from 1970-2001, the five countries with the largest number of terrorist attacks were Colombia, Peru, El Salvador, United Kingdom, and India. On the other hand, in the post-2001 context, the five countries with the largest number of terrorist attacks were Iraq, Pakistan, Afghanistan, India, and Thailand. One method for measuring in an aggregate way, how many people have suffered under terrorist attacks at national level is to analyze the correlation between some national wellbeing indicators and the number of terrorist attacks. The aim of this study is to analyze empirically the correlation between the global terrorist attacks and the countries wellbeing indicators. Five indicators show a strong relationship with the number of terrorist attacks in the case of the four most attacked countries in the post-2001 context. The authors consider that their findings can support the design of new strategies for preventing terrorist activities taking into account certain socio-economic and political drivers. The authors conclude that as such drivers are socio-complex, so it is necessary to adopt the complex adaptive system (CAS) approach to provide a new way of thinking about terrorism. 展开更多
关键词 Terrorist attacks national wellbeing global governance CORRUPTION DRUGS
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个体规则驱动的群体行为对称性破缺的临界状态 被引量:2
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作者 郑小京 郑君君 《系统工程理论与实践》 EI CSSCI CSCD 北大核心 2016年第2期413-426,共14页
经济系统中,个体相互作用能够给群体涌现非常复杂的非线性行为,导致某些个体的非理性行为可能导致整个经济系统迅速崩溃,这种崩溃前系统的临界状态就显得异常重要.为了得到比较深刻的结论,将经济系统中个体之间的相互作用抽象成以随机... 经济系统中,个体相互作用能够给群体涌现非常复杂的非线性行为,导致某些个体的非理性行为可能导致整个经济系统迅速崩溃,这种崩溃前系统的临界状态就显得异常重要.为了得到比较深刻的结论,将经济系统中个体之间的相互作用抽象成以随机复杂网络为结构的自适应博弈模型,从而构建合理的复杂自适应系统理论模型,然后通过随机攻击与蓄意攻击,来确定这一系统逾渗的临界状态.分析认为,当系统受到随机攻击时,系统表现出很强的鲁棒性,然而当系统受到蓄意攻击时,存在一个临界攻击概率使得系统具有较强的临界性.结论认为,系统受到随机攻击时,至少有两个大的组分保持系统联通,然而,当系统受到蓄意攻击时,系统存在一个临界删除概率,当删除概率小于这一临界概率时,系统存在两个大的组分;当删除概率大于这一临界概率时,系统难以保持联通.进一步而言,这一临界概率与系统中Agent的收益相关,这一结论修订了经典的以度为函数的复杂网络中的临界概率. 展开更多
关键词 AGENT 经济复杂适应系统 对称性破缺 临界
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