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Open Access Article
1 - Making Decision on Selection of Optimal Stock Portfolio Employing Meta Heuristic Algorithms for Multi-Objective Functions Subject to Real-Life Constraints
Ali Sepehri Hassan Ghodrati Ghazaani Hossein Jabbari Hossein PanahianThe purpose of this study is to make investment decisions with the approach of data envelopment analysis and making decision on selection of optimal stock portfolio employing meta heuristic algorithms for multi-objective functions subject to real-life constraints. The s MoreThe purpose of this study is to make investment decisions with the approach of data envelopment analysis and making decision on selection of optimal stock portfolio employing meta heuristic algorithms for multi-objective functions subject to real-life constraints. The statistical population of this research in capital decision-making and selection of the optimal capital composition is 183 of the selected companies of Tehran Stock Exchange, which were finally 42 companies as justified investment options. After measuring the risk and return of efficient companies, the real limitations of the budget, requirements and expectations of the investor, determination and composition of the investment were formulated as a multi-objective model. For optimal decision, the modified genetic meta heuristic algorithm and MATLAB software with dual operators were used. Elimination of the risk minimization function in sensitivity analysis improved the level of decision return but also led to more risk. Eliminating the maximizing return function improved decision-making risk but also reduced investment return. Elimination of investment requirements and expectations improved returns and increased investment risk, but more companies became involved in optimal investment. Manuscript profile -
Open Access Article
2 - Using Fuzzy Delphi Technique to Identify Financial Factors Affecting Risk Management in Iranian Banks
Marzieh Fatemi Moghadam Hassan Ghodrati Ghazaani Hossein Panahian Ali Akbar Farzin Far Mehdi Madanchi ZajThe intermediary role that commercial banks play between borrowers and lenders is significant for the development of a sustainable and healthy economy. If the banking system uses its collected resources properly, it will have a positive contribution to economic developm MoreThe intermediary role that commercial banks play between borrowers and lenders is significant for the development of a sustainable and healthy economy. If the banking system uses its collected resources properly, it will have a positive contribution to economic development. However, for this to happen, a bank must ensure that risks are accurately assessed and that appropriate approaches are designed to address potential risks. Due to the increasing integration of risk management plans in the culture and processes of organizations, various approaches have emerged to oppose the issue, which has caused doubts and shortcomings in its implementation. Therefore, identifying the financial and key factors for the success of risk management implementation in the organizational environment can help prevent possible defects in the implementation of processes. Therefore, in this study, the key financial factors of the success of implementing organizational risk management in Iranian banks were investigated. To investigate which of the identified factors in Iranian banks is significant, the fuzzy Delphi technique was used and effective factors were identified using the perspective of experts. The results showed that the factors of "appetite and risk tolerance", "willingness to take advantage of opportunities", "identification, analysis and response to risk" and "relationship of sectors", can be effective factors in implementing risk management Be an organization in Iranian banks. Manuscript profile
List of Articles Hassan Ghodrati
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