List of Articles عدم تجانس سرمایه‌گذاران و انتظ

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  1 - 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