List of Articles stock price bubble

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  1 - The Impact of Investor and Managers' Behavioral Bias on the Stock Price Bubble in capital market of Iran
  nazanin bashirimanesh shahnazi hossein
  10.30495/jfksa.2022.20210
  In emerging capital markets, the inability of investors to analyze financial information, scarcity of information, as well as the impact of macroeconomic and political factors on financial markets, causes the investor to focus on market excitement and the behavior of ot More

  In emerging capital markets, the inability of investors to analyze financial information, scarcity of information, as well as the impact of macroeconomic and political factors on financial markets, causes the investor to focus on market excitement and the behavior of other investors. The emotional and herd behaviors of investors are the source of the emergence of various anomalies such as price bubbles and the formation of sharp fluctuations in the market. Managers also have behavioral biases such as overconfidence, myopia and narcissism, which leads to a favorable image of the business and delays in presenting bad news, resulting in stock price bubbles. Accordingly, the purpose of this study is to investigate the effect of biases of investors and managers' behavior on the stock price bubble. The research sample included 129 companies listed on the Tehran Stock Exchange in the period 1392 to 398.To test the hypotheses, multivariate regression method with combined data was used.The results show that investors' behavioral distortions (emotional and herd behavior) increase the gap between the intrinsic stock price of the company and its value set by investors and lead to the formation of stock price bubbles. Managers' behavioral biases (overconfidence myopia and narcissism) also lead to the emergence of stock price bubbles. Manuscript profile
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  2 - Providing a Comprehensive Model for Measuring the Stock Price Bubble in Portfolio Management with a Behavioral Approach
  ALI RAMEZANI fereydon rahnama HAMIDREZA KORDLOUIE Shadi Shahverdiani
  10.30495/jfksa.2023.22462
  The main goal of the current research is to provide a model for measuring the stock price bubble with a behavioral approach. The present research method is a descriptive survey. The statistical population consists of two groups, in order to determine the factors related More

  The main goal of the current research is to provide a model for measuring the stock price bubble with a behavioral approach. The present research method is a descriptive survey. The statistical population consists of two groups, in order to determine the factors related to the model, the first group consists of 10 capital market experts, and the second group consists of active companies admitted to the stock exchange, which were used for the model test. ANP has been used to prioritize the identified behavioral factors. The calculations performed to determine the priority of the main criteria show that the heterogeneity of investors with a normal weight of 0.128 has the highest priority. Speculative behavior, mass behavior and mental accounting are in the second to fourth place, respectively. Also, the results of the second part show that considering that the statistical population of the research consists of all the companies active in the stock market between 2012 and 2019, 143 companies were selected as a sample based on systematic elimination. Eviews software and logistic regression were used to test the hypotheses. The identified behavioral factors include speculative behavior, behavioral volatility, investor heterogeneity and market expectations. The results show that behavioral instability, heterogeneity, market expectations, as well as speculative behavior have a positive effect on the occurrence of stock price bubbles; Therefore, it can be stated that behavioral factors can have a positive effect on the formation of the stock price bubble; Therefore, the identified pattern has the necessary efficiency from the behavioral point of view. Manuscript profile
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  3 - Investigating the Relationship between Earnings Management and the Stock price bubble of the Firms Accepted in Tehran Stock Exchange
  Hassan Zalaghi Masoume Ghasemi Reza Madadian Moez
  10.22034/amfa.2021.1931527.1604
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