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最大利润流问题及算法 被引量:5
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作者 卢虎生 高学东 武森 《数学的实践与认识》 CSCD 北大核心 2003年第5期43-48,共6页
最大利润流是以运输利润最大为目标的网络优化问题 .一个利润可行流可分解为若干个路流和圈流 ,相应地该可行流的利润也等于这些路流和圈流的利润之和 .本文证明了一个可行流为最大利润流的充要条件是不存在利润增广路 ,并据此提出了求... 最大利润流是以运输利润最大为目标的网络优化问题 .一个利润可行流可分解为若干个路流和圈流 ,相应地该可行流的利润也等于这些路流和圈流的利润之和 .本文证明了一个可行流为最大利润流的充要条件是不存在利润增广路 ,并据此提出了求解算法 .文章最后给出了一个计算实例 . 展开更多
关键词 最大利润问题 算法 运输利润 网络优化问题 有向图 利润可行流 利润可加性定理 利润增广路定理 到岸价格
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函数极值在经济管理中的应用 被引量:1
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作者 雷永红 《经济师》 北大核心 2001年第1期155-156,共2页
关键词 最大利润问题 经济管理 函数极值 需求分析 库存管理
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Metro passenger flow control with station-to-station cooperation based on stop-skipping and boarding limiting 被引量:11
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作者 姜曼 李海鹰 +2 位作者 许心越 徐仕鹏 苗建瑞 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第1期236-244,共9页
Metro passenger flow control problem is studied under given total inbound demand in this work,which considers passenger demand control and train capacity supply.Relevant connotations are analyzed and a mathematical mo... Metro passenger flow control problem is studied under given total inbound demand in this work,which considers passenger demand control and train capacity supply.Relevant connotations are analyzed and a mathematical model is developed.The decision variables are boarding limiting and stop-skipping strategies and the objective is the maximal passenger profit.And a passenger original station choice model based on utility theory is built to modify the inbound passenger distribution among stations.Algorithm of metro passenger flow control scheme is designed,where two key technologies of stopping-station choice and headway adjustment are given and boarding limiting and train stopping-station scheme are optimized.Finally,a real case of Beijing metro is taken for example to verify validity.The results show that in the three scenarios with different ratios of normal trains to stop-skipping trains,the total limited passenger volume is the smallest and the systematic profit is the largest in scenario 3. 展开更多
关键词 METRO passenger flow control stop-skipping boarding limiting passenger original station choice
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Why Bubble Economy Occurs and Crashes? Repeated History of Economic Growth and Collapse 被引量:2
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作者 Eizo Kinoshita 《Chinese Business Review》 2011年第2期102-111,共10页
This paper shows that there are two different phases in economics. These are the primal and dual problems. In the primal problem phase, capital expenditures of private corporations grow, creating an impetus towards th... This paper shows that there are two different phases in economics. These are the primal and dual problems. In the primal problem phase, capital expenditures of private corporations grow, creating an impetus towards the maximization of profits. In this case, as Adam Smith once wrote, the "invisible hand of God" works to lead the economy to a significant growth. This paper defines the concept of economic growth, bubble economy and destruction of bubble economy. And this paper describes why bubble economy occurs and crashes. In the process, this paper shows that primal economy exists before bubble economy and dual economy exists after destruction of bubble economy. 展开更多
关键词 economic growth bubble economy destruction of bubble economy
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Research on Motivation of Corporate Social Responsibility Based on Game Theory
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作者 ZHAO Gongmin 《Chinese Business Review》 2011年第8期616-623,共8页
The negative externalities of businesses brought serious social and environmental problems. Based on externality theory and game theory, the author in-depth analyzes intrinsic motivation of corporate social responsibi... The negative externalities of businesses brought serious social and environmental problems. Based on externality theory and game theory, the author in-depth analyzes intrinsic motivation of corporate social responsibility, and points out that corporate social responsibility will increase production costs, so companies will not take the initiative to raise the level of social responsibility. Through the analysis of corporate social responsibility profits, the paper reveals that if the government lack reasonable system to regulate corporate behavior, then the In'm, pursuiting maximizing profit, will choose the Nash equilibrium ofconsumpting public resources, and not take the initiative to fulfill their social responsibility to seek the Pareto equilibrium of the whole regional optimal, which results in high output and low returns. The research finds that the government should strengthen the publicity of corporate social responsibility, privatization of corporate social responsibility benefits and establishment of corporate social responsibility system and other means to guide and standardize the corporate social responsihility. 展开更多
关键词 corporate social responsibility externalities static game Nash equilibrium
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