List of Articles fereydon Rahnamaie roodposhti

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  1 - A quantum Model for the stock Market
  Neda Allahyaribeik Hashem Nikoomaram Sara Allahyaribeik Fraydoon Rahnamay Roodposhti
  10.22034/amfa.2020.1882182.1323
  Price return and P/E are two interesting factors for a lot of investors; The Bohmian quantum mechanics used referring to the time correlation of return and P/E of the stock market under consideration. In this study, we extend the quantum potential concept to determine t More

  Price return and P/E are two interesting factors for a lot of investors; The Bohmian quantum mechanics used referring to the time correlation of return and P/E of the stock market under consideration. In this study, we extend the quantum potential concept to determine the behaviour of P/E and also price return in two different industry of Tehran stock market during a time interval of April. 2008 to march 2019. The obtained results show that the quantum potential behaves in the same manner for P/E and price return, also confines the variations of the P/E and price return into a specific domain. Furthermore, a joint quantum potential as a function of return and P/E is derived by the probability distribution function (PDF) constructed by the real data of a given market. It serves as a suitable instrument to investigate the relationship between these variables. The resultant PDF and the corresponding joint quantum potential illustrate that where we have light points in joint quantum potential chart, the probability of those amount of P/E and price return are more than other points. In addition, because of the rectangular shape of the joint quantum potential chart we can say that these two variables behave as two independent variables in the Market. Manuscript profile
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  2 - The Role of Earnings Management in Economic Growth and Corporate Growth Illusion
  Leila Zamanianfar Fraydoon Rahnamay Roodposhti Bahman Banimahd Hashem Nikoomaram Zahra Deilami
  10.22034/amfa.2020.1900232.1430
  The most comprehensive criteria for evaluating management performance is economic value added, accounting added value, and over-valuation, which can best reflect how managers operate because of the information content that they provide. Therefore, considering the import More

  The most comprehensive criteria for evaluating management performance is economic value added, accounting added value, and over-valuation, which can best reflect how managers operate because of the information content that they provide. Therefore, considering the importance of earnings, this study investigates The Role of Earnings Management in Economic Growth and the Corporate’s Growth Illusion in Tehran Stock Exchange during the period 2012-2018 using systematic elimination method of information of 150 selected companies. The study data and theoretical foundations were collected through library studies. Hypotheses were tested using correlation method and multivariate regression. The results showed that with increasing in real earnings management, economic value added and accounting added value also increased. Also, with the increase in revenue earnings management, economic value added and accounting added value also increase. But there was no significant relationship between accrual earnings management and income with accounting added value. There is a positive significant relationship between actual earnings management resulting from abnormal and overvaluation operating cash flows and, there is a positive and significant relationship between accrual earnings management and overvaluation. Manuscript profile
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  3 - Measuring the Credit Risk of Bank Based on Z-Score And KMV- Merton Models: Evidence from Iran
  Mohammad Roshandel Mirfeiz Fallahshams Fereydoun Rahnama Roodposhti hashem nikoumaram
  10.22034/amfa.2022.1927934.1583
  This paper examines the credit risk in the Iranian banks during 2008 to 2018 through the Z-score (Accounting based data) and the KMV-Merton (Market based information) models. In the Merton model, equity is equal to call option on underlying value of the bank’s ass More

  This paper examines the credit risk in the Iranian banks during 2008 to 2018 through the Z-score (Accounting based data) and the KMV-Merton (Market based information) models. In the Merton model, equity is equal to call option on underlying value of the bank’s asset. The market value of assets is estimated by share price. The value of assets is then compared to the value of liabilities. Therefore, default when occurs that the market value of assets is less than the book value of debts. so, value of equity becomes negative. In the Z-score model, Return on Assets and Equity to Assets as the numerator and standard deviation of ROA as the denominator are applied. If the mentioned ratios of numerator increase and the denominator decrease, the probability of default decline. As well as, Independent variables are divided into five groups: leverage, management efficiency, profitability quality, financial health, and liquidity. As a result, capital adequacy and profitability have a greater impact on both models. Also, the ANOVA table proves the validity of two models. The value of ROC test in both models is above average (0.5) which are efficient and their efficiency is 99.48% and 92.68%, respectively. Also, in terms of Voung’s test, the KMV is more efficient than the Z-score. Manuscript profile