The purpose of this research is to investigate the relationship between crude oil prices and the stock market index of Iran in the period from September 2009 to December 2020. For this purpose, by using wavelet coherence approach based on continuous wavelet transform, t More
The purpose of this research is to investigate the relationship between crude oil prices and the stock market index of Iran in the period from September 2009 to December 2020. For this purpose, by using wavelet coherence approach based on continuous wavelet transform, the relationship between the yield pair series of Brent crude oil price-total stock index, WTI oil price-total stock index and OPEC oil price-total index of Tehran Stock Exchange has been investigated .The results of this research show that the dependence between the above pair of time series increases with the increase of uncertain conditions such as the increase of sanctions, the withdrawal of the United States from the JCPOA, and the corona pandemic in the medium and long term. Therefore, investors can adjust their investment portfolio in the long and medium term based on the conditions governing the country and their investment goals.
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The aim of this study is evaluating the effect of non-interest income on the risk and profitability of the banking industry by using systematic GMM during 1384 to 1393. The findings show that the increase of non-interest income results in the increase of profitability a More
The aim of this study is evaluating the effect of non-interest income on the risk and profitability of the banking industry by using systematic GMM during 1384 to 1393. The findings show that the increase of non-interest income results in the increase of profitability and the decrease of risk in Iran's banking system and there is a significant positive relationship between the concentration index and bank risk in such a way that the increase of concentration index results in increase of banks' risks. On the base of the research results and current problems of Iran's banking system, paying attention to banks' money making ability through non-interest income can be considered as a major solution.
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