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A Nonlinear Dynamic Model of the Financial Crises Contagions

Intelligent Information Management 2011年第1期3卷 17-21页

作者： Ke Chen yirong ying College of Management Shanghai University College of Finance and Economics Chongqing Jiaoting University

Employing the Differential Dynamics Method, a nonlinear dynamic model is set up to describe the international financial crises contagion within a short time between two countries. The two countries’ control force depending on the timely financial assistance, the positive attitude and actions to rescue other infected countries, and investor confidence aggregation, and the immunity ability of the infected country are considered as the major reasons to drive the nonlinear fluctuations of the stock return rates in both countries during the crisis. According to the Ordinary Differential Equations Qualitative Theory, we found that there are three cases of financial crises contagion within a brief time between two countries: weak contagion with instability but inhibition, contagion with limit and controllable oscillation, and strong contagion without control in a brief time.

关键词： Financial Crises Contagion Stock Return Rate Nonlinear Dynamics Model Limit Cycle

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Entrepreneur Education Level and Its Utility Maximization

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Intelligent Information Management 2023年第3期15卷 160-168页

作者： Baozhu Liu Mingxia Lyu yirong ying School of Economics Shanghai University Shanghai China Institute of Higher Education Shanghai University Shanghai China Xianda College of Economics and Humanities Shanghai International Studies University Shanghai China

The education level of entrepreneurs plays an important role in the decision-making process of loan financing. In this paper, the research method of optimization theory is used to study the problem of the education level and maximizing utility of entrepreneurs, and the optimal analytic solution is obtained. On this basis, the influence of the change of bank loan interest rate, the marginal effect of entrepreneur’s effort, the marginal effect of entrepreneur’s investment, the elastic coefficient of entrepreneur’s effort and the elastic coefficient of entrepreneur’s investment on the optimal solution of entrepreneur’s effort and investment amount is discussed.

关键词： Educational Background Utility Function Enterprise Performance

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A Dynamic Cross Contagion Model of Currency Crisis between Two Countries

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Intelligent Information Management 2011年第4期3卷 137-141页

作者： yirong ying Xiangqing Zou Ke Chen Yuyuan Tong Shanghai University Chongqing Jiaotong University

The contagion aspect of the currency crisis is an important research issue *** this paper, we set up a dynamic differential model of currency crisis cross contagions between two countries by expanding generalized logistics model, and analyze all kinds of possible equilibrium conditions. It is probably a new idea of studying currency crisis contagion mechanism.

关键词： Cross Contagion Currency Crisis Differential Dynamic Model

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具有外部激励的股票价格振荡与模拟

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系统管理学报 2020年第3期29卷 443-451页

作者：陈琼豪应益荣岳焱上海大学经济学院上海200444 上海建桥学院商学院上海201306

随着单边贸易主义的抬头和中国金融市场的进一步开放,跨境资本流动波动性增强,中国股票市场的系统性风险也不断提高。在中美贸易战和中国经济转型的背景下,中国需探讨如何预防股市崩盘的方法。以复杂系统的自组织理论为视角和框架,建立... 详细信息

随着单边贸易主义的抬头和中国金融市场的进一步开放,跨境资本流动波动性增强,中国股票市场的系统性风险也不断提高。在中美贸易战和中国经济转型的背景下,中国需探讨如何预防股市崩盘的方法。以复杂系统的自组织理论为视角和框架,建立基于单自由度系统受迫振动的股市崩盘自组织模型。从走势形态、量价关系、幂律性质和动量效应4个方面与历史上股市崩盘的真实数据进行对比,证明了模型具有良好的拟合性。同时研究了股市崩盘的过程并探讨了其中的内在机理,为预测股灾发生提供理论基础。

关键词：股市崩盘振动理论自组织系统金融物理

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