scholarly journals Computation of optimal investment allocations in a sequential portfolio optimisation

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Masiala Mavungu ◽  
Evan Hurwitz ◽  
Tshilidzi Marwala

Orientation: This article is related to Financial Risk Management, Investment Management and Portfolio Optimisation.Research purpose: The aim is to compute optimal investment allocations from one period to another.Motivation of the study: Financial market systems are governed by random behaviours expressing the complexity of the economy and the politics. Risk Measure and Management are current and major issues for financial market operators and attract the attention of researchers who develop suitable tools and methods to describe and control risk. In this article, financial risk management is considered for an investor operating in the financial market.Research approach/design and method: This research developed Mathematical Models to describe the problem and Computational Simulations to compute, summarise the results and show their reliabilities.Main findings: The results are the investments allocations stored, some tables and the related computational simulations. By going from period one to another, one can notice from the graphs that the portfolio risk is decreasing and the portfolio profit increasing.Practical/managerial implications: The approach used in this article shows a way of solving rigorously any linearly constrained quadratic optimisation problem and any constrained nonlinear problem. It gives the ability of transforming judiciously certain linearly constrained nonlinear programming problems into sequences of linearly constrained quadratic problems and solving them efficiently.Contributions/value-add: This article developed Mathematical Models and Matlab Computer Optimisation Programs to give Computational Simulations. It wrote Computer Programs for a fifth-order autoregressive model to forecast asset profits.

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Anita Radman Peša ◽  
Vanja Zubak ◽  
Duje Mitrović

The banking sector in the global economic system is an area of great impact on the preservation of macroeconomic stability. As it turned out, and during the recent economic crisis, whose consequences are still felt in many countries, the collapse of the financial markets has farreaching effects on all of the national financial markets. The aim of this paper is to analyze the existing regulation of the financial markets and its (lack of) performance in the current financial risk management in order to preserve macroeconomic stability, and provide a secure and stable banking system. The purpose of the study was to present financial regulation before the crisis of 2008 / 2009, and to compare it with the regulations issued after the global crisis of 2008 / 2009 in order to conclusion whether it is cosmetic or real changes of regulating the financial system, and whether existing regulation in the future successfully prevent minor and major disruptions of the financial markets. Croatian financial market is especially analysed in the case of manipulation using the benchmark interest rates.


2013 ◽  
Vol 380-384 ◽  
pp. 4472-4475
Author(s):  
Yi Xian Chai ◽  
Yan Li Xu ◽  
Dan Liu

Copula model and the application of the model in financial market risk management are discussed in this paper. The paper establishes a dynamic Copula model to solve the financial market risk management problems on the basis of Copula research. Through the use of statistics and financial theories and Copula model, the thesis studies the applications of Copula model in the financial risk management and resolves the problem whether there exists financial crisis contagion or not. The results indicate that the applications of model in the financial market risk management are effective, and the research on the problem should be done in-depth.


2011 ◽  
Vol 467-469 ◽  
pp. 2072-2077
Author(s):  
Yan Li Xu ◽  
Ling Ling Wang

This thesis mainly studies Copula model and the application of the model in financial market risk management. On the basis of studying copula, this thesis builds a dynamic Copula model to solve the financial market risk management problems. Using statistics and financial theories and Copula model, the thesis studies applications of Copula model in the financial risk management and resolves the problem that whether the financial contagion exists. The results indicate that the applications of model in the financial market risk management are effective, and should study in deep.


2020 ◽  
Vol 2 (4) ◽  
pp. 62-67
Author(s):  
M. M. KHAYTANOVA ◽  

The article reveals: theoretical justifications of the concept of “financial risk” in relation to the sphere of entrepreneurship; methods for its identification and processing. Financial risk management is the activity of identification, assessment, control and monitoring of risks. In the course of the study, methods for managing financial risks in entrepreneurial activity and their classification were identified.


2020 ◽  
Author(s):  
Simon Pierre NTIVUGURUZWA ◽  
Jean Bosco Ndikubwimana ◽  
Dukunde Angelique ◽  
JMV MPIRANYA ◽  
Frederic Mpambara ◽  
...  

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